Subtract 20/42 from 4/9
49 - 2042 is -263.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 9 × 14 = 126,
49 = 4 × 149 × 14 = 56126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
2042 = 20 × 342 × 3 = 60126 - Subtract the two like fractions:
56126 - 60126 = 56 - 60126 = -4126 - After reducing the fraction, the answer is -263
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