Add 18/63 and 25/70
18/63 + 25/70 is 9/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
18/63 = 18 × 10/63 × 10 = 180/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
25/70 = 25 × 9/70 × 9 = 225/630 - Add the two like fractions:
180/630 + 225/630 = 180 + 225/630 = 405/630 - 405/630 simplified gives 9/14
- So, 18/63 + 25/70 = 9/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/63+25/70 18/63+50/70 54/63+25/70 18/63+75/70 90/63+25/70