Add 20/56 and 14/45
20/56 + 14/45 is 421/630.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 45 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
20/56 = 20 × 45/56 × 45 = 900/2520 - Likewise, for the 2nd fraction, since 45 × 56 = 2520,
14/45 = 14 × 56/45 × 56 = 784/2520 - Add the two like fractions:
900/2520 + 784/2520 = 900 + 784/2520 = 1684/2520 - 1684/2520 simplified gives 421/630
- So, 20/56 + 14/45 = 421/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/56+14/45 20/56+28/45 20/56+14/90 60/56+14/45 20/56+42/45 20/56+70/45 20/56+98/45