Subtract 42/32 from 70/21
1st number: 3 7/21, 2nd number: 1 10/32
70/21 - 42/32 is 97/48.
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,
42/32 = 42 × 21/32 × 21 = 882/672 - Subtract the two like fractions:
2240/672 - 882/672 = 2240 - 882/672 = 1358/672 - After reducing the fraction, the answer is 97/48
- In mixed form: 21/48
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