Fraction+Help

If a child is able to **visualize fractions in his mind**, they become more concrete - not just a number on top of other number without a meaning. Then the child can estimate the answer before calculating, and evaluate the reasonableness of the final answer, and perform many of the simplest operations in his head.
 * **1. Fraction addition - same denominators** || Add the numerators, and use the same denominator ||
 * **2. Fraction addition - different denominators** || First find a common denominator by taking the least common multiple of the denominators. Then convert all the addends to have this common denominator. Then add using the rule above. ||
 * **3. Finding equivalent fractions** || Multiply both the numerator and denominator with a same number ||
 * **4. Mixed number to a fraction** || Multiply the whole number part by the denominator and add the numerator to get the numerator. Use the same denominator as in the fractional part of the mixed number. ||
 * **5. (Improper) fraction to a mixed number** || Divide the numerator by the denominator to get the whole number part. The remainder will be the numerator of the fractional part. Denominator is the same. ||
 * **6. Simplifying fractions** || Find the (greatest) common divisor of the numerator and denominator, and divide both by it. ||
 * **7. Fraction multiplication** || Multiply the numerators, and the denominators. ||
 * **8. Fraction division** || Find the reciprocal of the divisor, and multiply by it. ||