Subtract 5/63 from 21/80
21/80 - 5/63 is 923/5040.
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,
21/80 = 21 × 63/80 × 63 = 1323/5040 - Likewise, for the 2nd fraction, since 63 × 80 = 5040,
5/63 = 5 × 80/63 × 80 = 400/5040 - Subtract the two like fractions:
1323/5040 - 400/5040 = 1323 - 400/5040 = 923/5040
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