Subtract 90/45 from 98/54
1st number: 1 44/54, 2nd number: 2 0/45
98/54 - 90/45 is -5/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 45 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
98/54 = 98 × 5/54 × 5 = 490/270 - Likewise, for the 2nd fraction, since 45 × 6 = 270,
90/45 = 90 × 6/45 × 6 = 540/270 - Subtract the two like fractions:
490/270 - 540/270 = 490 - 540/270 = -50/270 - After reducing the fraction, the answer is -5/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: