Subtract 3/72 from 30/4, Solve 7 2/4

Subtract 3/72 from 30/4

1^st number: 7 2/4, 2^nd number: 3/72

30/4 - 3/72 is 179/24.

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,
3/72 = 3 × 1/72 × 1 = 3/72
Subtract the two like fractions:
540/72 - 3/72 = 540 - 3/72 = 537/72
After reducing the fraction, the answer is 179/24
In mixed form: 711/24

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