Add 81/5 and 20/7
1st number: 16 1/5, 2nd number: 2 6/7
81/5 + 20/7 is 667/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 7 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 5 × 7 = 35,
81/5 = 81 × 7/5 × 7 = 567/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
20/7 = 20 × 5/7 × 5 = 100/35 - Add the two like fractions:
567/35 + 100/35 = 567 + 100/35 = 667/35 - So, 81/5 + 20/7 = 667/35
In mixed form: 192/35
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