Subtract 20/49 from 30/90
30/90 - 20/49 is -11/147.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 49 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 90 × 49 = 4410,
30/90 = 30 × 49/90 × 49 = 1470/4410 - Likewise, for the 2nd fraction, since 49 × 90 = 4410,
20/49 = 20 × 90/49 × 90 = 1800/4410 - Subtract the two like fractions:
1470/4410 - 1800/4410 = 1470 - 1800/4410 = -330/4410 - After reducing the fraction, the answer is -11/147
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