Add 20/90 and 32/35
20/90 + 32/35 is 358/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 35 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
20/90 = 20 × 7/90 × 7 = 140/630 - Likewise, for the 2nd fraction, since 35 × 18 = 630,
32/35 = 32 × 18/35 × 18 = 576/630 - Add the two like fractions:
140/630 + 576/630 = 140 + 576/630 = 716/630 - 716/630 simplified gives 358/315
- So, 20/90 + 32/35 = 358/315
In mixed form: 143/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/90+32/35 20/90+64/35 20/90+32/70 60/90+32/35 20/90+96/35