Add 20/72 and 5/14
20/72 + 5/14 is 40/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 14 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
20/72 = 20 × 7/72 × 7 = 140/504 - Likewise, for the 2nd fraction, since 14 × 36 = 504,
5/14 = 5 × 36/14 × 36 = 180/504 - Add the two like fractions:
140/504 + 180/504 = 140 + 180/504 = 320/504 - 320/504 simplified gives 40/63
- So, 20/72 + 5/14 = 40/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/72+5/14 20/72+10/14 20/72+5/28 60/72+5/14 20/72+15/14 20/72+5/42 20/72+25/14 20/72+5/70 20/72+35/14 20/72+5/98