Subtract 42/10 from 15/70
1st number: 15/70, 2nd number: 4 2/10
15/70 - 42/10 is -279/70.
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,
15/70 = 15 × 1/70 × 1 = 15/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
42/10 = 42 × 7/10 × 7 = 294/70 - Subtract the two like fractions:
15/70 - 294/70 = 15 - 294/70 = -279/70
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