Subtract 21/49 from 7/10
7/10 - 21/49 is 19/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 49 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 10 × 49 = 490,
7/10 = 7 × 49/10 × 49 = 343/490 - Likewise, for the 2nd fraction, since 49 × 10 = 490,
21/49 = 21 × 10/49 × 10 = 210/490 - Subtract the two like fractions:
343/490 - 210/490 = 343 - 210/490 = 133/490 - After reducing the fraction, the answer is 19/70
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