Subtract 2/42 from 45/5, Solve 9 0/5

Subtract 2/42 from 45/5

1^st number: 9 0/5, 2^nd number: 2/42

45/5 - 2/42 is 188/21.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 42 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 5 × 42 = 210,
45/5 = 45 × 42/5 × 42 = 1890/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
2/42 = 2 × 5/42 × 5 = 10/210
Subtract the two like fractions:
1890/210 - 10/210 = 1890 - 10/210 = 1880/210
After reducing the fraction, the answer is 188/21
In mixed form: 820/21

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