Add 35/28 and 21/30
1st number: 1 7/28, 2nd number: 21/30
35/28 + 21/30 is 39/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
35/28 = 35 × 15/28 × 15 = 525/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
21/30 = 21 × 14/30 × 14 = 294/420 - Add the two like fractions:
525/420 + 294/420 = 525 + 294/420 = 819/420 - 819/420 simplified gives 39/20
- So, 35/28 + 21/30 = 39/20
In mixed form: 119/20
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