Subtract 21/49 from 3/35
3/35 - 21/49 is -12/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 49 is 245
Next, find the equivalent fraction of both fractional numbers with denominator 245 - For the 1st fraction, since 35 × 7 = 245,
3/35 = 3 × 7/35 × 7 = 21/245 - Likewise, for the 2nd fraction, since 49 × 5 = 245,
21/49 = 21 × 5/49 × 5 = 105/245 - Subtract the two like fractions:
21/245 - 105/245 = 21 - 105/245 = -84/245 - After reducing the fraction, the answer is -12/35
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