Subtract 84/70 from 9/4
1st number: 2 1/4, 2nd number: 1 14/70
9/4 - 84/70 is 21/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 4 × 35 = 140,
9/4 = 9 × 35/4 × 35 = 315/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
84/70 = 84 × 2/70 × 2 = 168/140 - Subtract the two like fractions:
315/140 - 168/140 = 315 - 168/140 = 147/140 - After reducing the fraction, the answer is 21/20
- In mixed form: 11/20
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