Subtract 75/42 from 50/80
1st number: 50/80, 2nd number: 1 33/42
50/80 - 75/42 is -65/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 42 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 80 × 21 = 1680,
50/80 = 50 × 21/80 × 21 = 1050/1680 - Likewise, for the 2nd fraction, since 42 × 40 = 1680,
75/42 = 75 × 40/42 × 40 = 3000/1680 - Subtract the two like fractions:
1050/1680 - 3000/1680 = 1050 - 3000/1680 = -1950/1680 - After reducing the fraction, the answer is -65/56
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