Subtract 36/40 from 30/28
1st number: 1 2/28, 2nd number: 36/40
30/28 - 36/40 is 6/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 28 × 10 = 280,
30/28 = 30 × 10/28 × 10 = 300/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
36/40 = 36 × 7/40 × 7 = 252/280 - Subtract the two like fractions:
300/280 - 252/280 = 300 - 252/280 = 48/280 - After reducing the fraction, the answer is 6/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/28-36/40 30/28-72/40 30/56-36/40 30/28-36/80 90/28-36/40 30/84-36/40