Subtract 40/45 from 90/49
1st number: 1 41/49, 2nd number: 40/45
90/49 - 40/45 is 418/441.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 45 is 2205
Next, find the equivalent fraction of both fractional numbers with denominator 2205 - For the 1st fraction, since 49 × 45 = 2205,
90/49 = 90 × 45/49 × 45 = 4050/2205 - Likewise, for the 2nd fraction, since 45 × 49 = 2205,
40/45 = 40 × 49/45 × 49 = 1960/2205 - Subtract the two like fractions:
4050/2205 - 1960/2205 = 4050 - 1960/2205 = 2090/2205 - After reducing the fraction, the answer is 418/441
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/49-80/45 90/98-40/45 90/49-40/90