Add 16/12 and 15/42
1st number: 1 4/12, 2nd number: 15/42
16/12 + 15/42 is 71/42.
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,
16/12 = 16 × 7/12 × 7 = 112/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
15/42 = 15 × 2/42 × 2 = 30/84 - Add the two like fractions:
112/84 + 30/84 = 112 + 30/84 = 142/84 - 142/84 simplified gives 71/42
- So, 16/12 + 15/42 = 71/42
In mixed form: 129/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/12+15/42 16/12+30/42 16/24+15/42 16/12+15/84 48/12+15/42 16/12+45/42 16/36+15/42 80/12+15/42 16/12+75/42 16/60+15/42 16/84+15/42