Add 42/6 and 90/9
1st number: 7 0/6, 2nd number: 10 0/9
42/6 + 90/9 is 17/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 6 × 3 = 18,
42/6 = 42 × 3/6 × 3 = 126/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
90/9 = 90 × 2/9 × 2 = 180/18 - Add the two like fractions:
126/18 + 180/18 = 126 + 180/18 = 306/18 - 306/18 simplified gives 17/1
- So, 42/6 + 90/9 = 17/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/6+90/9 42/12+90/9 42/6+90/18 42/18+90/9 42/6+90/27 42/30+90/9 42/6+90/45 42/6+90/63