Add 56/7 and 21/80
1st number: 8 0/7, 2nd number: 21/80
56/7 + 21/80 is 661/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 7 × 80 = 560,
56/7 = 56 × 80/7 × 80 = 4480/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
21/80 = 21 × 7/80 × 7 = 147/560 - Add the two like fractions:
4480/560 + 147/560 = 4480 + 147/560 = 4627/560 - 4627/560 simplified gives 661/80
- So, 56/7 + 21/80 = 661/80
In mixed form: 821/80
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