Subtract 4/80 from 3/2, Solve 1 1/2

Subtract 4/80 from 3/2

1^st number: 1 1/2, 2^nd number: 4/80

3/2 - 4/80 is 29/20.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 80 is 80

Next, find the equivalent fraction of both fractional numbers with denominator 80
For the 1st fraction, since 2 × 40 = 80,
3/2 = 3 × 40/2 × 40 = 120/80
Likewise, for the 2nd fraction, since 80 × 1 = 80,
4/80 = 4 × 1/80 × 1 = 4/80
Subtract the two like fractions:
120/80 - 4/80 = 120 - 4/80 = 116/80
After reducing the fraction, the answer is 29/20
In mixed form: 19/20

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