Subtract 20/72 from 30/4
1st number: 7 2/4, 2nd number: 20/72
30/4 - 20/72 is 65/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 4 × 18 = 72,
30/4 = 30 × 18/4 × 18 = 540/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
20/72 = 20 × 1/72 × 1 = 20/72 - Subtract the two like fractions:
540/72 - 20/72 = 540 - 20/72 = 520/72 - After reducing the fraction, the answer is 65/9
- In mixed form: 72/9
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