Subtract 80/21 from 49/30
1st number: 1 19/30, 2nd number: 3 17/21
49/30 - 80/21 is -457/210.
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,
49/30 = 49 × 7/30 × 7 = 343/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
80/21 = 80 × 10/21 × 10 = 800/210 - Subtract the two like fractions:
343/210 - 800/210 = 343 - 800/210 = -457/210
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