Add 20/28 and 4/7
20/28 + 4/7 is 9/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 28 × 1 = 28,
20/28 = 20 × 1/28 × 1 = 20/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
4/7 = 4 × 4/7 × 4 = 16/28 - Add the two like fractions:
20/28 + 16/28 = 20 + 16/28 = 36/28 - 36/28 simplified gives 9/7
- So, 20/28 + 4/7 = 9/7
In mixed form: 12/7
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