Subtract 4/40 from 90/63
1st number: 1 27/63, 2nd number: 4/40
90/63 - 4/40 is 93/70.
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,
4/40 = 4 × 63/40 × 63 = 252/2520 - Subtract the two like fractions:
3600/2520 - 252/2520 = 3600 - 252/2520 = 3348/2520 - After reducing the fraction, the answer is 93/70
- In mixed form: 123/70
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