Subtract 30/40 from 84/14
1st number: 6 0/14, 2nd number: 30/40
84/14 - 30/40 is 21/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 14 × 20 = 280,
84/14 = 84 × 20/14 × 20 = 1680/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
30/40 = 30 × 7/40 × 7 = 210/280 - Subtract the two like fractions:
1680/280 - 210/280 = 1680 - 210/280 = 1470/280 - After reducing the fraction, the answer is 21/4
- In mixed form: 51/4
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