Add 90/14 and 42/7
1st number: 6 6/14, 2nd number: 6 0/7
90/14 + 42/7 is 87/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 7 is 14
Next, find the equivalent fraction of both fractional numbers with denominator 14 - For the 1st fraction, since 14 × 1 = 14,
90/14 = 90 × 1/14 × 1 = 90/14 - Likewise, for the 2nd fraction, since 7 × 2 = 14,
42/7 = 42 × 2/7 × 2 = 84/14 - Add the two like fractions:
90/14 + 84/14 = 90 + 84/14 = 174/14 - 174/14 simplified gives 87/7
- So, 90/14 + 42/7 = 87/7
In mixed form: 123/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/14+84/7 90/28+42/7 90/14+42/14 90/42+42/7 90/14+42/21 90/70+42/7 90/14+42/35 90/98+42/7 90/14+42/49