Subtract 18/64 from 20/5
1st number: 4 0/5, 2nd number: 18/64
20/5 - 18/64 is 119/32.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 64 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 5 × 64 = 320,
20/5 = 20 × 64/5 × 64 = 1280/320 - Likewise, for the 2nd fraction, since 64 × 5 = 320,
18/64 = 18 × 5/64 × 5 = 90/320 - Subtract the two like fractions:
1280/320 - 90/320 = 1280 - 90/320 = 1190/320 - After reducing the fraction, the answer is 119/32
- In mixed form: 323/32
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/5-18/64 20/5-36/64 20/10-18/64 60/5-18/64 20/5-54/64 20/15-18/64 20/5-90/64 20/25-18/64 20/35-18/64