Subtract 25/42 from 84/8
1st number: 10 4/8, 2nd number: 25/42
84/8 - 25/42 is 208/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 42 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
84/8 = 84 × 21/8 × 21 = 1764/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
25/42 = 25 × 4/42 × 4 = 100/168 - Subtract the two like fractions:
1764/168 - 100/168 = 1764 - 100/168 = 1664/168 - After reducing the fraction, the answer is 208/21
- In mixed form: 919/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/8-50/42 84/16-25/42 84/8-25/84 84/8-75/42 84/24-25/42 84/40-25/42 84/56-25/42