Subtract 42/45 from 27/8, Solve 3 3/8

Subtract 42/45 from 27/8

1^st number: 3 3/8, 2^nd number: 42/45

27/8 - 42/45 is 293/120.

Find the least common denominator or LCM of the two denominators:
LCM of 8 and 45 is 360

Next, find the equivalent fraction of both fractional numbers with denominator 360
For the 1st fraction, since 8 × 45 = 360,
27/8 = 27 × 45/8 × 45 = 1215/360
Likewise, for the 2nd fraction, since 45 × 8 = 360,
42/45 = 42 × 8/45 × 8 = 336/360
Subtract the two like fractions:
1215/360 - 336/360 = 1215 - 336/360 = 879/360
After reducing the fraction, the answer is 293/120
In mixed form: 253/120

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