Add 98/15 and 21/20
1st number: 6 8/15, 2nd number: 1 1/20
98/15 + 21/20 is 91/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
98/15 = 98 × 4/15 × 4 = 392/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
21/20 = 21 × 3/20 × 3 = 63/60 - Add the two like fractions:
392/60 + 63/60 = 392 + 63/60 = 455/60 - 455/60 simplified gives 91/12
- So, 98/15 + 21/20 = 91/12
In mixed form: 77/12
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