Subtract 98/45 from 7/4
1st number: 1 3/4, 2nd number: 2 8/45
7/4 - 98/45 is -77/180.
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,
7/4 = 7 × 45/4 × 45 = 315/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
98/45 = 98 × 4/45 × 4 = 392/180 - Subtract the two like fractions:
315/180 - 392/180 = 315 - 392/180 = -77/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/4-98/45 7/8-98/45 7/4-98/90 21/4-98/45 7/12-98/45 35/4-98/45 7/20-98/45 49/4-98/45 7/28-98/45