Add 21/15 and 25/90
1st number: 1 6/15, 2nd number: 25/90
21/15 + 25/90 is 151/90.
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,
21/15 = 21 × 6/15 × 6 = 126/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
25/90 = 25 × 1/90 × 1 = 25/90 - Add the two like fractions:
126/90 + 25/90 = 126 + 25/90 = 151/90 - So, 21/15 + 25/90 = 151/90
In mixed form: 161/90
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