Add 20/70 and 24/63
20/70 + 24/63 is 2/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
20/70 = 20 × 9/70 × 9 = 180/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
24/63 = 24 × 10/63 × 10 = 240/630 - Add the two like fractions:
180/630 + 240/630 = 180 + 240/630 = 420/630 - 420/630 simplified gives 2/3
- So, 20/70 + 24/63 = 2/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/70+24/63 20/70+48/63 60/70+24/63 20/70+72/63