Subtract 48/63 from 42/80
42/80 - 48/63 is -199/840.
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,
42/80 = 42 × 63/80 × 63 = 2646/5040 - Likewise, for the 2nd fraction, since 63 × 80 = 5040,
48/63 = 48 × 80/63 × 80 = 3840/5040 - Subtract the two like fractions:
2646/5040 - 3840/5040 = 2646 - 3840/5040 = -1194/5040 - After reducing the fraction, the answer is -199/840
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