Add 21/70 and 27/16
1st number: 21/70, 2nd number: 1 11/16
21/70 + 27/16 is 159/80.
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,
21/70 = 21 × 8/70 × 8 = 168/560 - Likewise, for the 2nd fraction, since 16 × 35 = 560,
27/16 = 27 × 35/16 × 35 = 945/560 - Add the two like fractions:
168/560 + 945/560 = 168 + 945/560 = 1113/560 - 1113/560 simplified gives 159/80
- So, 21/70 + 27/16 = 159/80
In mixed form: 179/80
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