Add 20/24 and 10/42
20/24 + 10/42 is 15/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 42 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 42 × 4 = 168,
10/42 = 10 × 4/42 × 4 = 40/168 - Add the two like fractions:
140/168 + 40/168 = 140 + 40/168 = 180/168 - 180/168 simplified gives 15/14
- So, 20/24 + 10/42 = 15/14
In mixed form: 11/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/24+10/42 20/24+20/42 20/48+10/42 20/24+10/84 60/24+10/42 20/24+30/42 20/72+10/42 20/24+50/42 20/24+70/42