Subtract 21/84 from 40/9
1st number: 4 4/9, 2nd number: 21/84
40/9 - 21/84 is 151/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 9 × 28 = 252,
40/9 = 40 × 28/9 × 28 = 1120/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
21/84 = 21 × 3/84 × 3 = 63/252 - Subtract the two like fractions:
1120/252 - 63/252 = 1120 - 63/252 = 1057/252 - After reducing the fraction, the answer is 151/36
- In mixed form: 47/36
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