Subtract 45/4 from 28/42
1st number: 28/42, 2nd number: 11 1/4
28/42 - 45/4 is -127/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
28/42 = 28 × 2/42 × 2 = 56/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
45/4 = 45 × 21/4 × 21 = 945/84 - Subtract the two like fractions:
56/84 - 945/84 = 56 - 945/84 = -889/84 - After reducing the fraction, the answer is -127/12
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