Subtract 2/10 from 21/35
21/35 - 2/10 is 2/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 35 × 2 = 70,
21/35 = 21 × 2/35 × 2 = 42/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
2/10 = 2 × 7/10 × 7 = 14/70 - Subtract the two like fractions:
42/70 - 14/70 = 42 - 14/70 = 28/70 - After reducing the fraction, the answer is 2/5
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