Subtract 30/63 from 4/80
4/80 - 30/63 is -179/420.
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,
4/80 = 4 × 63/80 × 63 = 252/5040 - Likewise, for the 2nd fraction, since 63 × 80 = 5040,
30/63 = 30 × 80/63 × 80 = 2400/5040 - Subtract the two like fractions:
252/5040 - 2400/5040 = 252 - 2400/5040 = -2148/5040 - After reducing the fraction, the answer is -179/420
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