Add 42/6 and 90/7
1st number: 7 0/6, 2nd number: 12 6/7
42/6 + 90/7 is 139/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 7 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
42/6 = 42 × 7/6 × 7 = 294/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
90/7 = 90 × 6/7 × 6 = 540/42 - Add the two like fractions:
294/42 + 540/42 = 294 + 540/42 = 834/42 - 834/42 simplified gives 139/7
- So, 42/6 + 90/7 = 139/7
In mixed form: 196/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/6+90/7 42/12+90/7 42/6+90/14 42/18+90/7 42/6+90/21 42/30+90/7 42/6+90/35 42/6+90/49