Subtract 63/18 from 63/40
1st number: 1 23/40, 2nd number: 3 9/18
63/40 - 63/18 is -77/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 18 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
63/40 = 63 × 9/40 × 9 = 567/360 - Likewise, for the 2nd fraction, since 18 × 20 = 360,
63/18 = 63 × 20/18 × 20 = 1260/360 - Subtract the two like fractions:
567/360 - 1260/360 = 567 - 1260/360 = -693/360 - After reducing the fraction, the answer is -77/40
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