Subtract 4/40 from 75/45
1st number: 1 30/45, 2nd number: 4/40
75/45 - 4/40 is 47/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
75/45 = 75 × 8/45 × 8 = 600/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
4/40 = 4 × 9/40 × 9 = 36/360 - Subtract the two like fractions:
600/360 - 36/360 = 600 - 36/360 = 564/360 - After reducing the fraction, the answer is 47/30
- In mixed form: 117/30
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