Add 6/7 and 90/45
1st number: 6/7, 2nd number: 2 0/45
6/7 + 90/45 is 20/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 7 × 45 = 315,
6/7 = 6 × 45/7 × 45 = 270/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
90/45 = 90 × 7/45 × 7 = 630/315 - Add the two like fractions:
270/315 + 630/315 = 270 + 630/315 = 900/315 - 900/315 simplified gives 20/7
- So, 6/7 + 90/45 = 20/7
In mixed form: 26/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/7+90/45 6/14+90/45 18/7+90/45 6/21+90/45 30/7+90/45 6/35+90/45 42/7+90/45 6/49+90/45