Subtract 28/70 from 40/49
40/49 - 28/70 is 102/245.
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,
40/49 = 40 × 10/49 × 10 = 400/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
28/70 = 28 × 7/70 × 7 = 196/490 - Subtract the two like fractions:
400/490 - 196/490 = 400 - 196/490 = 204/490 - After reducing the fraction, the answer is 102/245
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