Subtract 40/70 from 15/48
15/48 - 40/70 is -29/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 70 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 48 × 35 = 1680,
15/48 = 15 × 35/48 × 35 = 525/1680 - Likewise, for the 2nd fraction, since 70 × 24 = 1680,
40/70 = 40 × 24/70 × 24 = 960/1680 - Subtract the two like fractions:
525/1680 - 960/1680 = 525 - 960/1680 = -435/1680 - After reducing the fraction, the answer is -29/112
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