Subtract 4/54 from 42/10, Solve 4 2/10

Subtract 4/54 from 42/10

1^st number: 4 2/10, 2^nd number: 4/54

42/10 - 4/54 is 557/135.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 54 is 270

Next, find the equivalent fraction of both fractional numbers with denominator 270
For the 1st fraction, since 10 × 27 = 270,
42/10 = 42 × 27/10 × 27 = 1134/270
Likewise, for the 2nd fraction, since 54 × 5 = 270,
4/54 = 4 × 5/54 × 5 = 20/270
Subtract the two like fractions:
1134/270 - 20/270 = 1134 - 20/270 = 1114/270
After reducing the fraction, the answer is 557/135
In mixed form: 417/135

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