Subtract 98/45 from 81/63
1st number: 1 18/63, 2nd number: 2 8/45
81/63 - 98/45 is -281/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
81/63 = 81 × 5/63 × 5 = 405/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
98/45 = 98 × 7/45 × 7 = 686/315 - Subtract the two like fractions:
405/315 - 686/315 = 405 - 686/315 = -281/315
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