Subtract 30/84 from 45/6
1st number: 7 3/6, 2nd number: 30/84
45/6 - 30/84 is 50/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 6 × 14 = 84,
45/6 = 45 × 14/6 × 14 = 630/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
30/84 = 30 × 1/84 × 1 = 30/84 - Subtract the two like fractions:
630/84 - 30/84 = 630 - 30/84 = 600/84 - After reducing the fraction, the answer is 50/7
- In mixed form: 71/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/6-30/84 45/6-60/84 45/12-30/84 45/6-90/84 45/18-30/84 45/30-30/84 45/42-30/84