Add 21/15 and 10/84
1st number: 1 6/15, 2nd number: 10/84
21/15 + 10/84 is 319/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
21/15 = 21 × 28/15 × 28 = 588/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
10/84 = 10 × 5/84 × 5 = 50/420 - Add the two like fractions:
588/420 + 50/420 = 588 + 50/420 = 638/420 - 638/420 simplified gives 319/210
- So, 21/15 + 10/84 = 319/210
In mixed form: 1109/210
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