Add 15/70 and 21/16
1st number: 15/70, 2nd number: 1 5/16
15/70 + 21/16 is 171/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 16 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 70 × 8 = 560,
15/70 = 15 × 8/70 × 8 = 120/560 - Likewise, for the 2nd fraction, since 16 × 35 = 560,
21/16 = 21 × 35/16 × 35 = 735/560 - Add the two like fractions:
120/560 + 735/560 = 120 + 735/560 = 855/560 - 855/560 simplified gives 171/112
- So, 15/70 + 21/16 = 171/112
In mixed form: 159/112
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