Subtract 30/5 from 45/4, Solve 11 1/4

Subtract 30/5 from 45/4

1^st number: 11 1/4, 2^nd number: 6 0/5

45/4 - 30/5 is 21/4.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 5 is 20

Next, find the equivalent fraction of both fractional numbers with denominator 20
For the 1st fraction, since 4 × 5 = 20,
45/4 = 45 × 5/4 × 5 = 225/20
Likewise, for the 2nd fraction, since 5 × 4 = 20,
30/5 = 30 × 4/5 × 4 = 120/20
Subtract the two like fractions:
225/20 - 120/20 = 225 - 120/20 = 105/20
After reducing the fraction, the answer is 21/4
In mixed form: 51/4

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