Add 21/15 and 6/84
1st number: 1 6/15, 2nd number: 6/84
21/15 + 6/84 is 103/70.
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,
6/84 = 6 × 5/84 × 5 = 30/420 - Add the two like fractions:
588/420 + 30/420 = 588 + 30/420 = 618/420 - 618/420 simplified gives 103/70
- So, 21/15 + 6/84 = 103/70
In mixed form: 133/70
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