Subtract 42/16 from 90/70
1st number: 1 20/70, 2nd number: 2 10/16
90/70 - 42/16 is -75/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 16 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 70 × 8 = 560,
90/70 = 90 × 8/70 × 8 = 720/560 - Likewise, for the 2nd fraction, since 16 × 35 = 560,
42/16 = 42 × 35/16 × 35 = 1470/560 - Subtract the two like fractions:
720/560 - 1470/560 = 720 - 1470/560 = -750/560 - After reducing the fraction, the answer is -75/56
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