Subtract 50/21 from 27/30
1st number: 27/30, 2nd number: 2 8/21
27/30 - 50/21 is -311/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
27/30 = 27 × 7/30 × 7 = 189/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
50/21 = 50 × 10/21 × 10 = 500/210 - Subtract the two like fractions:
189/210 - 500/210 = 189 - 500/210 = -311/210
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