Add 15/28 and 90/60
1st number: 15/28, 2nd number: 1 30/60
15/28 + 90/60 is 57/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
15/28 = 15 × 15/28 × 15 = 225/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
90/60 = 90 × 7/60 × 7 = 630/420 - Add the two like fractions:
225/420 + 630/420 = 225 + 630/420 = 855/420 - 855/420 simplified gives 57/28
- So, 15/28 + 90/60 = 57/28
In mixed form: 21/28
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