Add 14/70 and 10/90
14/70 + 10/90 is 14/45.
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,
14/70 = 14 × 9/70 × 9 = 126/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
10/90 = 10 × 7/90 × 7 = 70/630 - Add the two like fractions:
126/630 + 70/630 = 126 + 70/630 = 196/630 - 196/630 simplified gives 14/45
- So, 14/70 + 10/90 = 14/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/70+10/90 14/70+20/90 42/70+10/90 14/70+30/90 14/70+50/90 98/70+10/90 14/70+70/90