Subtract 45/9 from 7/4
1st number: 1 3/4, 2nd number: 5 0/9
7/4 - 45/9 is -13/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
7/4 = 7 × 9/4 × 9 = 63/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
45/9 = 45 × 4/9 × 4 = 180/36 - Subtract the two like fractions:
63/36 - 180/36 = 63 - 180/36 = -117/36 - After reducing the fraction, the answer is -13/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/4-45/9 7/4-90/9 7/8-45/9 7/4-45/18 21/4-45/9 7/12-45/9 7/4-45/27 35/4-45/9 7/20-45/9 49/4-45/9 7/28-45/9 7/4-45/63