Subtract 4/72 from 30/10, Solve 3 0/10

Subtract 4/72 from 30/10

1^st number: 3 0/10, 2^nd number: 4/72

30/10 - 4/72 is 53/18.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 72 is 360

Next, find the equivalent fraction of both fractional numbers with denominator 360
For the 1st fraction, since 10 × 36 = 360,
30/10 = 30 × 36/10 × 36 = 1080/360
Likewise, for the 2nd fraction, since 72 × 5 = 360,
4/72 = 4 × 5/72 × 5 = 20/360
Subtract the two like fractions:
1080/360 - 20/360 = 1080 - 20/360 = 1060/360
After reducing the fraction, the answer is 53/18
In mixed form: 217/18

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