Add 21/15 and 98/12
1st number: 1 6/15, 2nd number: 8 2/12
21/15 + 98/12 is 287/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
21/15 = 21 × 4/15 × 4 = 84/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
98/12 = 98 × 5/12 × 5 = 490/60 - Add the two like fractions:
84/60 + 490/60 = 84 + 490/60 = 574/60 - 574/60 simplified gives 287/30
- So, 21/15 + 98/12 = 287/30
In mixed form: 917/30
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