Subtract 75/36 from 70/40
1st number: 1 30/40, 2nd number: 2 3/36
70/40 - 75/36 is -1/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 36 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
70/40 = 70 × 9/40 × 9 = 630/360 - Likewise, for the 2nd fraction, since 36 × 10 = 360,
75/36 = 75 × 10/36 × 10 = 750/360 - Subtract the two like fractions:
630/360 - 750/360 = 630 - 750/360 = -120/360 - After reducing the fraction, the answer is -1/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/80-75/36 70/40-75/72