Add 21/16 and 63/70
1st number: 1 5/16, 2nd number: 63/70
21/16 + 63/70 is 177/80.
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,
21/16 = 21 × 35/16 × 35 = 735/560 - Likewise, for the 2nd fraction, since 70 × 8 = 560,
63/70 = 63 × 8/70 × 8 = 504/560 - Add the two like fractions:
735/560 + 504/560 = 735 + 504/560 = 1239/560 - 1239/560 simplified gives 177/80
- So, 21/16 + 63/70 = 177/80
In mixed form: 217/80
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