Add 4/45 and 20/56
4/45 + 20/56 is 281/630.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 56 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 45 × 56 = 2520,
4/45 = 4 × 56/45 × 56 = 224/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
20/56 = 20 × 45/56 × 45 = 900/2520 - Add the two like fractions:
224/2520 + 900/2520 = 224 + 900/2520 = 1124/2520 - 1124/2520 simplified gives 281/630
- So, 4/45 + 20/56 = 281/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/45+20/56 4/45+40/56 4/90+20/56 12/45+20/56 4/45+60/56 20/45+20/56 28/45+20/56