Subtract 10/42 from 10/21
1021 - 1042 is 521.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
1021 = 10 × 221 × 2 = 2042 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
1042 = 10 × 142 × 1 = 1042 - Subtract the two like fractions:
2042 - 1042 = 20 - 1042 = 1042 - After reducing the fraction, the answer is 521
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