Subtract 4/64 from 90/30
1st number: 3 0/30, 2nd number: 4/64
90/30 - 4/64 is 47/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 64 is 960
Next, find the equivalent fraction of both fractional numbers with denominator 960 - For the 1st fraction, since 30 × 32 = 960,
90/30 = 90 × 32/30 × 32 = 2880/960 - Likewise, for the 2nd fraction, since 64 × 15 = 960,
4/64 = 4 × 15/64 × 15 = 60/960 - Subtract the two like fractions:
2880/960 - 60/960 = 2880 - 60/960 = 2820/960 - After reducing the fraction, the answer is 47/16
- In mixed form: 215/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30-8/64 90/60-4/64 90/30-12/64 90/30-20/64 90/30-28/64