Subtract 14/70 from 20/21
20/21 - 14/70 is 79/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
20/21 = 20 × 10/21 × 10 = 200/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
14/70 = 14 × 3/70 × 3 = 42/210 - Subtract the two like fractions:
200/210 - 42/210 = 200 - 42/210 = 158/210 - After reducing the fraction, the answer is 79/105
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