Subtract 4/32 from 20/18, Solve 1 2/18

Subtract 4/32 from 20/18

1^st number: 1 2/18, 2^nd number: 4/32

20/18 - 4/32 is 71/72.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 32 is 288

Next, find the equivalent fraction of both fractional numbers with denominator 288
For the 1st fraction, since 18 × 16 = 288,
20/18 = 20 × 16/18 × 16 = 320/288
Likewise, for the 2nd fraction, since 32 × 9 = 288,
4/32 = 4 × 9/32 × 9 = 36/288
Subtract the two like fractions:
320/288 - 36/288 = 320 - 36/288 = 284/288
After reducing the fraction, the answer is 71/72

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