Subtract 70/5 from 42/45
1st number: 42/45, 2nd number: 14 0/5
42/45 - 70/5 is -196/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 5 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
42/45 = 42 × 1/45 × 1 = 42/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
70/5 = 70 × 9/5 × 9 = 630/45 - Subtract the two like fractions:
42/45 - 630/45 = 42 - 630/45 = -588/45 - After reducing the fraction, the answer is -196/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/45-70/5 42/90-70/5 42/45-70/10 42/45-70/15 42/45-70/25 42/45-70/35