Add 9/8 and 15/84
1st number: 1 1/8, 2nd number: 15/84
9/8 + 15/84 is 73/56.
Steps for adding 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,
9/8 = 9 × 21/8 × 21 = 189/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
15/84 = 15 × 2/84 × 2 = 30/168 - Add the two like fractions:
189/168 + 30/168 = 189 + 30/168 = 219/168 - 219/168 simplified gives 73/56
- So, 9/8 + 15/84 = 73/56
In mixed form: 117/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/8+15/84 9/8+30/84 9/16+15/84 27/8+15/84 9/8+45/84 9/24+15/84 45/8+15/84 9/8+75/84 9/40+15/84 63/8+15/84 9/56+15/84