Add 1/35 and 20/90
1/35 + 20/90 is 79/315.
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,
1/35 = 1 × 18/35 × 18 = 18/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
20/90 = 20 × 7/90 × 7 = 140/630 - Add the two like fractions:
18/630 + 140/630 = 18 + 140/630 = 158/630 - 158/630 simplified gives 79/315
- So, 1/35 + 20/90 = 79/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/35+20/90 1/35+40/90 1/70+20/90 3/35+20/90 1/35+60/90 5/35+20/90 7/35+20/90