Subtract 45/48 from 90/30
1st number: 3 0/30, 2nd number: 45/48
90/30 - 45/48 is 33/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 48 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 30 × 8 = 240,
90/30 = 90 × 8/30 × 8 = 720/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
45/48 = 45 × 5/48 × 5 = 225/240 - Subtract the two like fractions:
720/240 - 225/240 = 720 - 225/240 = 495/240 - After reducing the fraction, the answer is 33/16
- In mixed form: 21/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30-90/48 90/60-45/48 90/30-45/96