Subtract 20/45 from 40/7
1st number: 5 5/7, 2nd number: 20/45
40/7 - 20/45 is 332/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 7 × 45 = 315,
40/7 = 40 × 45/7 × 45 = 1800/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
20/45 = 20 × 7/45 × 7 = 140/315 - Subtract the two like fractions:
1800/315 - 140/315 = 1800 - 140/315 = 1660/315 - After reducing the fraction, the answer is 332/63
- In mixed form: 517/63
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