Subtract 5/42 from 20/70
20/70 - 5/42 is 1/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
20/70 = 20 × 3/70 × 3 = 60/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
5/42 = 5 × 5/42 × 5 = 25/210 - Subtract the two like fractions:
60/210 - 25/210 = 60 - 25/210 = 35/210 - After reducing the fraction, the answer is 1/6
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