Add 8/12 and 9/42
8/12 + 9/42 is 37/42.
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,
8/12 = 8 × 7/12 × 7 = 56/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
9/42 = 9 × 2/42 × 2 = 18/84 - Add the two like fractions:
56/84 + 18/84 = 56 + 18/84 = 74/84 - 74/84 simplified gives 37/42
- So, 8/12 + 9/42 = 37/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/12+9/42 8/12+18/42 8/24+9/42 8/12+9/84 24/12+9/42 8/12+27/42 8/36+9/42 40/12+9/42 8/12+45/42 8/60+9/42 56/12+9/42 8/12+63/42 8/84+9/42