Subtract 48/50 from 3/90
3/90 - 48/50 is -139/150.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 90 × 5 = 450,
3/90 = 3 × 5/90 × 5 = 15/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
48/50 = 48 × 9/50 × 9 = 432/450 - Subtract the two like fractions:
15/450 - 432/450 = 15 - 432/450 = -417/450 - After reducing the fraction, the answer is -139/150
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/90-48/50 3/90-96/50 9/90-48/50 15/90-48/50 21/90-48/50