Subtract 9/27 from 42/7, Solve 6 0/7

Subtract 9/27 from 42/7

1^st number: 6 0/7, 2^nd number: 9/27

42/7 - 9/27 is 17/3.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 27 is 189

Next, find the equivalent fraction of both fractional numbers with denominator 189
For the 1st fraction, since 7 × 27 = 189,
42/7 = 42 × 27/7 × 27 = 1134/189
Likewise, for the 2nd fraction, since 27 × 7 = 189,
9/27 = 9 × 7/27 × 7 = 63/189
Subtract the two like fractions:
1134/189 - 63/189 = 1134 - 63/189 = 1071/189
After reducing the fraction, the answer is 17/3
In mixed form: 52/3

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