Subtract 4/40 from 75/12
1st number: 6 3/12, 2nd number: 4/40
75/12 - 4/40 is 123/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 12 × 10 = 120,
75/12 = 75 × 10/12 × 10 = 750/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
4/40 = 4 × 3/40 × 3 = 12/120 - Subtract the two like fractions:
750/120 - 12/120 = 750 - 12/120 = 738/120 - After reducing the fraction, the answer is 123/20
- In mixed form: 63/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/12-8/40 75/24-4/40 75/12-4/80 75/12-12/40 75/36-4/40 75/12-20/40 75/60-4/40 75/12-28/40 75/84-4/40