Subtract 15/70 from 6/49
6/49 - 15/70 is -9/98.
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,
6/49 = 6 × 10/49 × 10 = 60/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
15/70 = 15 × 7/70 × 7 = 105/490 - Subtract the two like fractions:
60/490 - 105/490 = 60 - 105/490 = -45/490 - After reducing the fraction, the answer is -9/98
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