Subtract 42/35 from 2/72
1st number: 2/72, 2nd number: 1 7/35
2/72 - 42/35 is -211/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 35 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 72 × 35 = 2520,
2/72 = 2 × 35/72 × 35 = 70/2520 - Likewise, for the 2nd fraction, since 35 × 72 = 2520,
42/35 = 42 × 72/35 × 72 = 3024/2520 - Subtract the two like fractions:
70/2520 - 3024/2520 = 70 - 3024/2520 = -2954/2520 - After reducing the fraction, the answer is -211/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/72-42/35 2/72-84/35 2/72-42/70 6/72-42/35 10/72-42/35 14/72-42/35