Subtract 90/48 from 35/30
1st number: 1 5/30, 2nd number: 1 42/48
35/30 - 90/48 is -17/24.
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,
35/30 = 35 × 8/30 × 8 = 280/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
90/48 = 90 × 5/48 × 5 = 450/240 - Subtract the two like fractions:
280/240 - 450/240 = 280 - 450/240 = -170/240 - After reducing the fraction, the answer is -17/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/30-90/48 35/60-90/48 35/30-90/96 35/90-90/48