Add 15/7 and 70/80
1st number: 2 1/7, 2nd number: 70/80
15/7 + 70/80 is 169/56.
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,
15/7 = 15 × 80/7 × 80 = 1200/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
70/80 = 70 × 7/80 × 7 = 490/560 - Add the two like fractions:
1200/560 + 490/560 = 1200 + 490/560 = 1690/560 - 1690/560 simplified gives 169/56
- So, 15/7 + 70/80 = 169/56
In mixed form: 31/56
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