Subtract 3/45 from 2/4
2/4 - 3/45 is 13/30.
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,
3/45 = 3 × 4/45 × 4 = 12/180 - Subtract the two like fractions:
90/180 - 12/180 = 90 - 12/180 = 78/180 - After reducing the fraction, the answer is 13/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/4-6/45 2/8-3/45 2/4-3/90 6/4-3/45 2/4-9/45 2/12-3/45 10/4-3/45 2/4-15/45 2/20-3/45 14/4-3/45 2/4-21/45 2/28-3/45