Add 21/14 and 12/15
1st number: 1 7/14, 2nd number: 12/15
21/14 + 12/15 is 23/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 14 × 15 = 210,
21/14 = 21 × 15/14 × 15 = 315/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
12/15 = 12 × 14/15 × 14 = 168/210 - Add the two like fractions:
315/210 + 168/210 = 315 + 168/210 = 483/210 - 483/210 simplified gives 23/10
- So, 21/14 + 12/15 = 23/10
In mixed form: 23/10
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