Add 80/7 and 70/80
1st number: 11 3/7, 2nd number: 70/80
80/7 + 70/80 is 689/56.
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,
80/7 = 80 × 80/7 × 80 = 6400/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
70/80 = 70 × 7/80 × 7 = 490/560 - Add the two like fractions:
6400/560 + 490/560 = 6400 + 490/560 = 6890/560 - 6890/560 simplified gives 689/56
- So, 80/7 + 70/80 = 689/56
In mixed form: 1217/56
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