Add 49/70 and 72/80
49/70 + 72/80 is 8/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 70 × 8 = 560,
49/70 = 49 × 8/70 × 8 = 392/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
72/80 = 72 × 7/80 × 7 = 504/560 - Add the two like fractions:
392/560 + 504/560 = 392 + 504/560 = 896/560 - 896/560 simplified gives 8/5
- So, 49/70 + 72/80 = 8/5
In mixed form: 13/5
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