Add 42/30 and 12/28
1st number: 1 12/30, 2nd number: 12/28
42/30 + 12/28 is 64/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
42/30 = 42 × 14/30 × 14 = 588/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
12/28 = 12 × 15/28 × 15 = 180/420 - Add the two like fractions:
588/420 + 180/420 = 588 + 180/420 = 768/420 - 768/420 simplified gives 64/35
- So, 42/30 + 12/28 = 64/35
In mixed form: 129/35
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