Add 21/15 and 9/14
1st number: 1 6/15, 2nd number: 9/14
21/15 + 9/14 is 143/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 14 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
21/15 = 21 × 14/15 × 14 = 294/210 - Likewise, for the 2nd fraction, since 14 × 15 = 210,
9/14 = 9 × 15/14 × 15 = 135/210 - Add the two like fractions:
294/210 + 135/210 = 294 + 135/210 = 429/210 - 429/210 simplified gives 143/70
- So, 21/15 + 9/14 = 143/70
In mixed form: 23/70
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