Add 30/35 and 18/90
30/35 + 18/90 is 37/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 35 × 18 = 630,
30/35 = 30 × 18/35 × 18 = 540/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
18/90 = 18 × 7/90 × 7 = 126/630 - Add the two like fractions:
540/630 + 126/630 = 540 + 126/630 = 666/630 - 666/630 simplified gives 37/35
- So, 30/35 + 18/90 = 37/35
In mixed form: 12/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/35+18/90 30/35+36/90 30/70+18/90 90/35+18/90 30/35+54/90