Subtract 21/40 from 40/10
1st number: 4 0/10, 2nd number: 21/40
40/10 - 21/40 is 139/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
40/10 = 40 × 4/10 × 4 = 160/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
21/40 = 21 × 1/40 × 1 = 21/40 - Subtract the two like fractions:
160/40 - 21/40 = 160 - 21/40 = 139/40 - In mixed form: 319/40
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