Subtract 15/50 from 70/21
1st number: 3 7/21, 2nd number: 15/50
70/21 - 15/50 is 91/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 50 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 21 × 50 = 1050,
70/21 = 70 × 50/21 × 50 = 3500/1050 - Likewise, for the 2nd fraction, since 50 × 21 = 1050,
15/50 = 15 × 21/50 × 21 = 315/1050 - Subtract the two like fractions:
3500/1050 - 315/1050 = 3500 - 315/1050 = 3185/1050 - After reducing the fraction, the answer is 91/30
- In mixed form: 31/30
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