Add 45/56 and 20/84
45/56 + 20/84 is 25/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 84 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
45/56 = 45 × 3/56 × 3 = 135/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
20/84 = 20 × 2/84 × 2 = 40/168 - Add the two like fractions:
135/168 + 40/168 = 135 + 40/168 = 175/168 - 175/168 simplified gives 25/24
- So, 45/56 + 20/84 = 25/24
In mixed form: 11/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/56+20/84 45/56+40/84 45/56+60/84