Subtract 6/70 from 3/42
3/42 - 6/70 is -1/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
3/42 = 3 × 5/42 × 5 = 15/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
6/70 = 6 × 3/70 × 3 = 18/210 - Subtract the two like fractions:
15/210 - 18/210 = 15 - 18/210 = -3/210 - After reducing the fraction, the answer is -1/70
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