Add 21/16 and 80/70
1st number: 1 5/16, 2nd number: 1 10/70
21/16 + 80/70 is 275/112.
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,
80/70 = 80 × 8/70 × 8 = 640/560 - Add the two like fractions:
735/560 + 640/560 = 735 + 640/560 = 1375/560 - 1375/560 simplified gives 275/112
- So, 21/16 + 80/70 = 275/112
In mixed form: 251/112
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