Add 45/9 and 90/70
1st number: 5 0/9, 2nd number: 1 20/70
45/9 + 90/70 is 44/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 9 × 70 = 630,
45/9 = 45 × 70/9 × 70 = 3150/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
90/70 = 90 × 9/70 × 9 = 810/630 - Add the two like fractions:
3150/630 + 810/630 = 3150 + 810/630 = 3960/630 - 3960/630 simplified gives 44/7
- So, 45/9 + 90/70 = 44/7
In mixed form: 62/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/9+90/70 45/18+90/70 45/27+90/70 45/63+90/70