Add 27/28 and 42/15
1st number: 27/28, 2nd number: 2 12/15
27/28 + 42/15 is 527/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 15 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
27/28 = 27 × 15/28 × 15 = 405/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
42/15 = 42 × 28/15 × 28 = 1176/420 - Add the two like fractions:
405/420 + 1176/420 = 405 + 1176/420 = 1581/420 - 1581/420 simplified gives 527/140
- So, 27/28 + 42/15 = 527/140
In mixed form: 3107/140
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