Add 2/12 and 45/42
1st number: 2/12, 2nd number: 1 3/42
2/12 + 45/42 is 26/21.
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,
2/12 = 2 × 7/12 × 7 = 14/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
45/42 = 45 × 2/42 × 2 = 90/84 - Add the two like fractions:
14/84 + 90/84 = 14 + 90/84 = 104/84 - 104/84 simplified gives 26/21
- So, 2/12 + 45/42 = 26/21
In mixed form: 15/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/12+45/42 2/12+90/42 2/24+45/42 2/12+45/84 6/12+45/42 2/36+45/42 10/12+45/42 2/60+45/42 14/12+45/42 2/84+45/42