Add 1/70 and 8/90
1/70 + 8/90 is 13/126.
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,
1/70 = 1 × 9/70 × 9 = 9/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
8/90 = 8 × 7/90 × 7 = 56/630 - Add the two like fractions:
9/630 + 56/630 = 9 + 56/630 = 65/630 - 65/630 simplified gives 13/126
- So, 1/70 + 8/90 = 13/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/70+8/90 1/70+16/90 3/70+8/90 1/70+24/90 5/70+8/90 1/70+40/90 7/70+8/90 1/70+56/90