Add 15/80 and 49/70
15/80 + 49/70 is 71/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 70 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
15/80 = 15 × 7/80 × 7 = 105/560 - Likewise, for the 2nd fraction, since 70 × 8 = 560,
49/70 = 49 × 8/70 × 8 = 392/560 - Add the two like fractions:
105/560 + 392/560 = 105 + 392/560 = 497/560 - 497/560 simplified gives 71/80
- So, 15/80 + 49/70 = 71/80
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