Subtract 42/9 from 72/35
1st number: 2 2/35, 2nd number: 4 6/9
72/35 - 42/9 is -274/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 9 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 35 × 9 = 315,
72/35 = 72 × 9/35 × 9 = 648/315 - Likewise, for the 2nd fraction, since 9 × 35 = 315,
42/9 = 42 × 35/9 × 35 = 1470/315 - Subtract the two like fractions:
648/315 - 1470/315 = 648 - 1470/315 = -822/315 - After reducing the fraction, the answer is -274/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/35-84/9 72/70-42/9 72/35-42/18 72/35-42/27 72/35-42/45 72/35-42/63