Subtract 4/30 from 75/40
1st number: 1 35/40, 2nd number: 4/30
75/40 - 4/30 is 209/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
75/40 = 75 × 3/40 × 3 = 225/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
4/30 = 4 × 4/30 × 4 = 16/120 - Subtract the two like fractions:
225/120 - 16/120 = 225 - 16/120 = 209/120 - In mixed form: 189/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/40-8/30 75/80-4/30 75/40-4/60 75/40-12/30 75/40-4/90 75/40-20/30 75/40-28/30