Add 21/14 and 81/5
1st number: 1 7/14, 2nd number: 16 1/5
21/14 + 81/5 is 177/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 5 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 14 × 5 = 70,
21/14 = 21 × 5/14 × 5 = 105/70 - Likewise, for the 2nd fraction, since 5 × 14 = 70,
81/5 = 81 × 14/5 × 14 = 1134/70 - Add the two like fractions:
105/70 + 1134/70 = 105 + 1134/70 = 1239/70 - 1239/70 simplified gives 177/10
- So, 21/14 + 81/5 = 177/10
In mixed form: 177/10
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