Subtract 15/70 from 2/80
2/80 - 15/70 is -53/280.
Steps for subtracting 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,
2/80 = 2 × 7/80 × 7 = 14/560 - Likewise, for the 2nd fraction, since 70 × 8 = 560,
15/70 = 15 × 8/70 × 8 = 120/560 - Subtract the two like fractions:
14/560 - 120/560 = 14 - 120/560 = -106/560 - After reducing the fraction, the answer is -53/280
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