Subtract 60/21 from 30/72
1st number: 30/72, 2nd number: 2 18/21
30/72 - 60/21 is -205/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 21 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
30/72 = 30 × 7/72 × 7 = 210/504 - Likewise, for the 2nd fraction, since 21 × 24 = 504,
60/21 = 60 × 24/21 × 24 = 1440/504 - Subtract the two like fractions:
210/504 - 1440/504 = 210 - 1440/504 = -1230/504 - After reducing the fraction, the answer is -205/84
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