Add 45/7 and 18/90
1st number: 6 3/7, 2nd number: 18/90
45/7 + 18/90 is 232/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 7 × 90 = 630,
45/7 = 45 × 90/7 × 90 = 4050/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
18/90 = 18 × 7/90 × 7 = 126/630 - Add the two like fractions:
4050/630 + 126/630 = 4050 + 126/630 = 4176/630 - 4176/630 simplified gives 232/35
- So, 45/7 + 18/90 = 232/35
In mixed form: 622/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/7+18/90 45/7+36/90 45/14+18/90 45/7+54/90 45/21+18/90 45/35+18/90 45/49+18/90