Add 21/24 and 50/42
1st number: 21/24, 2nd number: 1 8/42
21/24 + 50/42 is 347/168.
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,
21/24 = 21 × 7/24 × 7 = 147/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
50/42 = 50 × 4/42 × 4 = 200/168 - Add the two like fractions:
147/168 + 200/168 = 147 + 200/168 = 347/168 - So, 21/24 + 50/42 = 347/168
In mixed form: 211/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/24+50/42 21/48+50/42 21/24+50/84 63/24+50/42 21/72+50/42