Add 81/15 and 42/90
1st number: 5 6/15, 2nd number: 42/90
81/15 + 42/90 is 88/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
81/15 = 81 × 6/15 × 6 = 486/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
42/90 = 42 × 1/90 × 1 = 42/90 - Add the two like fractions:
486/90 + 42/90 = 486 + 42/90 = 528/90 - 528/90 simplified gives 88/15
- So, 81/15 + 42/90 = 88/15
In mixed form: 513/15
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