Subtract 75/27 from 15/8, Solve 1 7/8

Subtract 75/27 from 15/8

1^st number: 1 7/8, 2^nd number: 2 21/27

15/8 - 75/27 is -65/72.

Find the least common denominator or LCM of the two denominators:
LCM of 8 and 27 is 216

Next, find the equivalent fraction of both fractional numbers with denominator 216
For the 1st fraction, since 8 × 27 = 216,
15/8 = 15 × 27/8 × 27 = 405/216
Likewise, for the 2nd fraction, since 27 × 8 = 216,
75/27 = 75 × 8/27 × 8 = 600/216
Subtract the two like fractions:
405/216 - 600/216 = 405 - 600/216 = -195/216
After reducing the fraction, the answer is -65/72

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