Subtract 45/8 from 32/42
1st number: 32/42, 2nd number: 5 5/8
32/42 - 45/8 is -817/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
32/42 = 32 × 4/42 × 4 = 128/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
45/8 = 45 × 21/8 × 21 = 945/168 - Subtract the two like fractions:
128/168 - 945/168 = 128 - 945/168 = -817/168
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