Add 7/15 and 20/28
7/15 + 20/28 is 124/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
7/15 = 7 × 28/15 × 28 = 196/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
20/28 = 20 × 15/28 × 15 = 300/420 - Add the two like fractions:
196/420 + 300/420 = 196 + 300/420 = 496/420 - 496/420 simplified gives 124/105
- So, 7/15 + 20/28 = 124/105
In mixed form: 119/105
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