Add 10/12 and 21/15
1st number: 10/12, 2nd number: 1 6/15
10/12 + 21/15 is 67/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
10/12 = 10 × 5/12 × 5 = 50/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
21/15 = 21 × 4/15 × 4 = 84/60 - Add the two like fractions:
50/60 + 84/60 = 50 + 84/60 = 134/60 - 134/60 simplified gives 67/30
- So, 10/12 + 21/15 = 67/30
In mixed form: 27/30
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