Add 42/12 and 42/84
1st number: 3 6/12, 2nd number: 42/84
42/12 + 42/84 is 4/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
42/12 = 42 × 7/12 × 7 = 294/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
42/84 = 42 × 1/84 × 1 = 42/84 - Add the two like fractions:
294/84 + 42/84 = 294 + 42/84 = 336/84 - 336/84 simplified gives 4/1
- So, 42/12 + 42/84 = 4/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12+42/84 42/24+42/84 42/36+42/84 42/60+42/84 42/84+42/84