Subtract 72/70 from 21/2
1st number: 10 1/2, 2nd number: 1 2/70
21/2 - 72/70 is 663/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 2 × 35 = 70,
21/2 = 21 × 35/2 × 35 = 735/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
72/70 = 72 × 1/70 × 1 = 72/70 - Subtract the two like fractions:
735/70 - 72/70 = 735 - 72/70 = 663/70 - In mixed form: 933/70
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