Subtract 7/10 from 42/9, Solve 4 6/9

Subtract 7/10 from 42/9

1^st number: 4 6/9, 2^nd number: 7/10

42/9 - 7/10 is 119/30.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 10 is 90

Next, find the equivalent fraction of both fractional numbers with denominator 90
For the 1st fraction, since 9 × 10 = 90,
42/9 = 42 × 10/9 × 10 = 420/90
Likewise, for the 2nd fraction, since 10 × 9 = 90,
7/10 = 7 × 9/10 × 9 = 63/90
Subtract the two like fractions:
420/90 - 63/90 = 420 - 63/90 = 357/90
After reducing the fraction, the answer is 119/30
In mixed form: 329/30

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