Subtract 40/21 from 28/3
1st number: 9 1/3, 2nd number: 1 19/21
28/3 - 40/21 is 52/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 21 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 3 × 7 = 21,
28/3 = 28 × 7/3 × 7 = 196/21 - Likewise, for the 2nd fraction, since 21 × 1 = 21,
40/21 = 40 × 1/21 × 1 = 40/21 - Subtract the two like fractions:
196/21 - 40/21 = 196 - 40/21 = 156/21 - After reducing the fraction, the answer is 52/7
- In mixed form: 73/7
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