Subtract 50/60 from 70/21
1st number: 3 7/21, 2nd number: 50/60
70/21 - 50/60 is 5/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 21 × 20 = 420,
70/21 = 70 × 20/21 × 20 = 1400/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
50/60 = 50 × 7/60 × 7 = 350/420 - Subtract the two like fractions:
1400/420 - 350/420 = 1400 - 350/420 = 1050/420 - After reducing the fraction, the answer is 5/2
- In mixed form: 21/2
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