Subtract 8/90 from 60/40
1st number: 1 20/40, 2nd number: 8/90
60/40 - 8/90 is 127/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
60/40 = 60 × 9/40 × 9 = 540/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
8/90 = 8 × 4/90 × 4 = 32/360 - Subtract the two like fractions:
540/360 - 32/360 = 540 - 32/360 = 508/360 - After reducing the fraction, the answer is 127/90
- In mixed form: 137/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/40-16/90 60/80-8/90 60/40-24/90 60/40-40/90 60/40-56/90