Add 42/36 and 21/15
1st number: 1 6/36, 2nd number: 1 6/15
42/36 + 21/15 is 77/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 15 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
42/36 = 42 × 5/36 × 5 = 210/180 - Likewise, for the 2nd fraction, since 15 × 12 = 180,
21/15 = 21 × 12/15 × 12 = 252/180 - Add the two like fractions:
210/180 + 252/180 = 210 + 252/180 = 462/180 - 462/180 simplified gives 77/30
- So, 42/36 + 21/15 = 77/30
In mixed form: 217/30
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