Subtract 9/7 from 54/30, Solve 1 24/30

Subtract 9/7 from 54/30

1^st number: 1 24/30, 2^nd number: 1 2/7

54/30 - 9/7 is 18/35.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 7 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 30 × 7 = 210,
54/30 = 54 × 7/30 × 7 = 378/210
Likewise, for the 2nd fraction, since 7 × 30 = 210,
9/7 = 9 × 30/7 × 30 = 270/210
Subtract the two like fractions:
378/210 - 270/210 = 378 - 270/210 = 108/210
After reducing the fraction, the answer is 18/35

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