Add 50/70 and 5/90
50/70 + 5/90 is 97/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
50/70 = 50 × 9/70 × 9 = 450/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
5/90 = 5 × 7/90 × 7 = 35/630 - Add the two like fractions:
450/630 + 35/630 = 450 + 35/630 = 485/630 - 485/630 simplified gives 97/126
- So, 50/70 + 5/90 = 97/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/70+10/90 50/70+15/90 50/70+25/90 50/70+35/90