Subtract 18/70 from 7/49
7/49 - 18/70 is -4/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 70 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 49 × 10 = 490,
7/49 = 7 × 10/49 × 10 = 70/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
18/70 = 18 × 7/70 × 7 = 126/490 - Subtract the two like fractions:
70/490 - 126/490 = 70 - 126/490 = -56/490 - After reducing the fraction, the answer is -4/35
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