Subtract 10/84 from 30/8
1st number: 3 6/8, 2nd number: 10/84
30/8 - 10/84 is 305/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 84 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
30/8 = 30 × 21/8 × 21 = 630/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
10/84 = 10 × 2/84 × 2 = 20/168 - Subtract the two like fractions:
630/168 - 20/168 = 630 - 20/168 = 610/168 - After reducing the fraction, the answer is 305/84
- In mixed form: 353/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/8-10/84 30/8-20/84 30/16-10/84 90/8-10/84 30/8-30/84 30/24-10/84 30/8-50/84 30/40-10/84 30/8-70/84 30/56-10/84