Add 7/15 and 90/28
1st number: 7/15, 2nd number: 3 6/28
7/15 + 90/28 is 773/210.
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,
90/28 = 90 × 15/28 × 15 = 1350/420 - Add the two like fractions:
196/420 + 1350/420 = 196 + 1350/420 = 1546/420 - 1546/420 simplified gives 773/210
- So, 7/15 + 90/28 = 773/210
In mixed form: 3143/210
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