Subtract 8/45 from 2/4
2/4 - 8/45 is 29/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
2/4 = 2 × 45/4 × 45 = 90/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
8/45 = 8 × 4/45 × 4 = 32/180 - Subtract the two like fractions:
90/180 - 32/180 = 90 - 32/180 = 58/180 - After reducing the fraction, the answer is 29/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/4-16/45 2/8-8/45 2/4-8/90 6/4-8/45 2/4-24/45 2/12-8/45 10/4-8/45 2/4-40/45 2/20-8/45 14/4-8/45 2/4-56/45 2/28-8/45