Subtract 42/70 from 3/48
3/48 - 42/70 is -43/80.
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,
3/48 = 3 × 35/48 × 35 = 105/1680 - Likewise, for the 2nd fraction, since 70 × 24 = 1680,
42/70 = 42 × 24/70 × 24 = 1008/1680 - Subtract the two like fractions:
105/1680 - 1008/1680 = 105 - 1008/1680 = -903/1680 - After reducing the fraction, the answer is -43/80
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