Subtract 42/63 from 1/80
1/80 - 42/63 is -157/240.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 63 is 5040
Next, find the equivalent fraction of both fractional numbers with denominator 5040 - For the 1st fraction, since 80 × 63 = 5040,
1/80 = 1 × 63/80 × 63 = 63/5040 - Likewise, for the 2nd fraction, since 63 × 80 = 5040,
42/63 = 42 × 80/63 × 80 = 3360/5040 - Subtract the two like fractions:
63/5040 - 3360/5040 = 63 - 3360/5040 = -3297/5040 - After reducing the fraction, the answer is -157/240
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