Subtract 28/45 from 7/35
7/35 - 28/45 is -19/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 35 × 9 = 315,
7/35 = 7 × 9/35 × 9 = 63/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
28/45 = 28 × 7/45 × 7 = 196/315 - Subtract the two like fractions:
63/315 - 196/315 = 63 - 196/315 = -133/315 - After reducing the fraction, the answer is -19/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/35-28/45 7/35-56/45 7/70-28/45 7/35-28/90 21/35-28/45 7/35-84/45 49/35-28/45