Subtract 4/40 from 24/21
1st number: 1 3/21, 2nd number: 4/40
24/21 - 4/40 is 73/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 40 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 21 × 40 = 840,
24/21 = 24 × 40/21 × 40 = 960/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
4/40 = 4 × 21/40 × 21 = 84/840 - Subtract the two like fractions:
960/840 - 84/840 = 960 - 84/840 = 876/840 - After reducing the fraction, the answer is 73/70
- In mixed form: 13/70
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