Add 80/35 and 70/90
1st number: 2 10/35, 2nd number: 70/90
80/35 + 70/90 is 193/63.
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,
80/35 = 80 × 18/35 × 18 = 1440/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
70/90 = 70 × 7/90 × 7 = 490/630 - Add the two like fractions:
1440/630 + 490/630 = 1440 + 490/630 = 1930/630 - 1930/630 simplified gives 193/63
- So, 80/35 + 70/90 = 193/63
In mixed form: 34/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/70+70/90