Subtract 40/20 from 30/49
1st number: 30/49, 2nd number: 2 0/20
30/49 - 40/20 is -68/49.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 20 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 49 × 20 = 980,
30/49 = 30 × 20/49 × 20 = 600/980 - Likewise, for the 2nd fraction, since 20 × 49 = 980,
40/20 = 40 × 49/20 × 49 = 1960/980 - Subtract the two like fractions:
600/980 - 1960/980 = 600 - 1960/980 = -1360/980 - After reducing the fraction, the answer is -68/49
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