Subtract 84/4 from 7/40
1st number: 7/40, 2nd number: 21 0/4
7/40 - 84/4 is -833/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 4 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
7/40 = 7 × 1/40 × 1 = 7/40 - Likewise, for the 2nd fraction, since 4 × 10 = 40,
84/4 = 84 × 10/4 × 10 = 840/40 - Subtract the two like fractions:
7/40 - 840/40 = 7 - 840/40 = -833/40
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