Add 12/84 and 45/8
1st number: 12/84, 2nd number: 5 5/8
12/84 + 45/8 is 323/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 84 × 2 = 168,
12/84 = 12 × 2/84 × 2 = 24/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
45/8 = 45 × 21/8 × 21 = 945/168 - Add the two like fractions:
24/168 + 945/168 = 24 + 945/168 = 969/168 - 969/168 simplified gives 323/56
- So, 12/84 + 45/8 = 323/56
In mixed form: 543/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/84+45/8 12/84+90/8 12/84+45/16 36/84+45/8 12/84+45/24 60/84+45/8 12/84+45/40 12/84+45/56