Add 21/7 and 80/56
1st number: 3 0/7, 2nd number: 1 24/56
21/7 + 80/56 is 31/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 7 × 8 = 56,
21/7 = 21 × 8/7 × 8 = 168/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
80/56 = 80 × 1/56 × 1 = 80/56 - Add the two like fractions:
168/56 + 80/56 = 168 + 80/56 = 248/56 - 248/56 simplified gives 31/7
- So, 21/7 + 80/56 = 31/7
In mixed form: 43/7
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