Subtract 18/32 from 70/21
1st number: 3 7/21, 2nd number: 18/32
70/21 - 18/32 is 133/48.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 32 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 21 × 32 = 672,
70/21 = 70 × 32/21 × 32 = 2240/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
18/32 = 18 × 21/32 × 21 = 378/672 - Subtract the two like fractions:
2240/672 - 378/672 = 2240 - 378/672 = 1862/672 - After reducing the fraction, the answer is 133/48
- In mixed form: 237/48
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