Subtract 60/20 from 8/45
1st number: 8/45, 2nd number: 3 0/20
8/45 - 60/20 is -127/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
8/45 = 8 × 4/45 × 4 = 32/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
60/20 = 60 × 9/20 × 9 = 540/180 - Subtract the two like fractions:
32/180 - 540/180 = 32 - 540/180 = -508/180 - After reducing the fraction, the answer is -127/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/45-60/20 8/90-60/20 8/45-60/40 24/45-60/20 40/45-60/20 56/45-60/20