Subtract 30/72 from 12/28
12/28 - 30/72 is 1/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 28 × 18 = 504,
12/28 = 12 × 18/28 × 18 = 216/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
30/72 = 30 × 7/72 × 7 = 210/504 - Subtract the two like fractions:
216/504 - 210/504 = 216 - 210/504 = 6/504 - After reducing the fraction, the answer is 1/84
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