Subtract 3/40 from 90/63
1st number: 1 27/63, 2nd number: 3/40
90/63 - 3/40 is 379/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 40 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 63 × 40 = 2520,
90/63 = 90 × 40/63 × 40 = 3600/2520 - Likewise, for the 2nd fraction, since 40 × 63 = 2520,
3/40 = 3 × 63/40 × 63 = 189/2520 - Subtract the two like fractions:
3600/2520 - 189/2520 = 3600 - 189/2520 = 3411/2520 - After reducing the fraction, the answer is 379/280
- In mixed form: 199/280
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