Subtract 9/40 from 63/4
1st number: 15 3/4, 2nd number: 9/40
63/4 - 9/40 is 621/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 4 × 10 = 40,
63/4 = 63 × 10/4 × 10 = 630/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
9/40 = 9 × 1/40 × 1 = 9/40 - Subtract the two like fractions:
630/40 - 9/40 = 630 - 9/40 = 621/40 - In mixed form: 1521/40
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