Add 90/84 and 1/7
1st number: 1 6/84, 2nd number: 1/7
90/84 + 1/7 is 17/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
90/84 = 90 × 1/84 × 1 = 90/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
1/7 = 1 × 12/7 × 12 = 12/84 - Add the two like fractions:
90/84 + 12/84 = 90 + 12/84 = 102/84 - 102/84 simplified gives 17/14
- So, 90/84 + 1/7 = 17/14
In mixed form: 13/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/84+2/7 90/84+1/14 90/84+3/7 90/84+1/21 90/84+5/7 90/84+1/35 90/84+1/49