Add 21/70 and 20/16
1st number: 21/70, 2nd number: 1 4/16
21/70 + 20/16 is 31/20.
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,
20/16 = 20 × 35/16 × 35 = 700/560 - Add the two like fractions:
168/560 + 700/560 = 168 + 700/560 = 868/560 - 868/560 simplified gives 31/20
- So, 21/70 + 20/16 = 31/20
In mixed form: 111/20
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