Subtract 42/10 from 50/70
1st number: 50/70, 2nd number: 4 2/10
50/70 - 42/10 is -122/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
50/70 = 50 × 1/70 × 1 = 50/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
42/10 = 42 × 7/10 × 7 = 294/70 - Subtract the two like fractions:
50/70 - 294/70 = 50 - 294/70 = -244/70 - After reducing the fraction, the answer is -122/35
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