Add 24/12 and 45/42
1st number: 2 0/12, 2nd number: 1 3/42
24/12 + 45/42 is 43/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
24/12 = 24 × 7/12 × 7 = 168/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
45/42 = 45 × 2/42 × 2 = 90/84 - Add the two like fractions:
168/84 + 90/84 = 168 + 90/84 = 258/84 - 258/84 simplified gives 43/14
- So, 24/12 + 45/42 = 43/14
In mixed form: 31/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/12+45/42 24/12+90/42 24/12+45/84 72/12+45/42 24/36+45/42 24/60+45/42 24/84+45/42