Subtract 21/75 from 54/18, Solve 3 0/18

Subtract 21/75 from 54/18

1^st number: 3 0/18, 2^nd number: 21/75

54/18 - 21/75 is 68/25.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 75 is 450

Next, find the equivalent fraction of both fractional numbers with denominator 450
For the 1st fraction, since 18 × 25 = 450,
54/18 = 54 × 25/18 × 25 = 1350/450
Likewise, for the 2nd fraction, since 75 × 6 = 450,
21/75 = 21 × 6/75 × 6 = 126/450
Subtract the two like fractions:
1350/450 - 126/450 = 1350 - 126/450 = 1224/450
After reducing the fraction, the answer is 68/25
In mixed form: 218/25

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