Add 21/90 and 98/60
1st number: 21/90, 2nd number: 1 38/60
21/90 + 98/60 is 28/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
21/90 = 21 × 2/90 × 2 = 42/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
98/60 = 98 × 3/60 × 3 = 294/180 - Add the two like fractions:
42/180 + 294/180 = 42 + 294/180 = 336/180 - 336/180 simplified gives 28/15
- So, 21/90 + 98/60 = 28/15
In mixed form: 113/15
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