Add 15/16 and 21/70
15/16 + 21/70 is 99/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 70 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 16 × 35 = 560,
15/16 = 15 × 35/16 × 35 = 525/560 - Likewise, for the 2nd fraction, since 70 × 8 = 560,
21/70 = 21 × 8/70 × 8 = 168/560 - Add the two like fractions:
525/560 + 168/560 = 525 + 168/560 = 693/560 - 693/560 simplified gives 99/80
- So, 15/16 + 21/70 = 99/80
In mixed form: 119/80
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