Subtract 90/7 from 2/45
1st number: 2/45, 2nd number: 12 6/7
2/45 - 90/7 is -4036/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 7 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
2/45 = 2 × 7/45 × 7 = 14/315 - Likewise, for the 2nd fraction, since 7 × 45 = 315,
90/7 = 90 × 45/7 × 45 = 4050/315 - Subtract the two like fractions:
14/315 - 4050/315 = 14 - 4050/315 = -4036/315
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