Subtract 21/20 from 84/35
1st number: 2 14/35, 2nd number: 1 1/20
84/35 - 21/20 is 27/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 35 × 4 = 140,
84/35 = 84 × 4/35 × 4 = 336/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
21/20 = 21 × 7/20 × 7 = 147/140 - Subtract the two like fractions:
336/140 - 147/140 = 336 - 147/140 = 189/140 - After reducing the fraction, the answer is 27/20
- In mixed form: 17/20
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