Add 20/24 and 40/84
20/24 + 40/84 is 55/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 84 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
20/24 = 20 × 7/24 × 7 = 140/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
40/84 = 40 × 2/84 × 2 = 80/168 - Add the two like fractions:
140/168 + 80/168 = 140 + 80/168 = 220/168 - 220/168 simplified gives 55/42
- So, 20/24 + 40/84 = 55/42
In mixed form: 113/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/24+40/84 20/24+80/84 20/48+40/84 60/24+40/84 20/72+40/84