Add 8/70 and 2/90
8/70 + 2/90 is 43/315.
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,
8/70 = 8 × 9/70 × 9 = 72/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
2/90 = 2 × 7/90 × 7 = 14/630 - Add the two like fractions:
72/630 + 14/630 = 72 + 14/630 = 86/630 - 86/630 simplified gives 43/315
- So, 8/70 + 2/90 = 43/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/70+2/90 8/70+4/90 24/70+2/90 8/70+6/90 40/70+2/90 8/70+10/90 56/70+2/90 8/70+14/90