Add 5/36 and 21/70
5/36 + 21/70 is 79/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 70 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 36 × 35 = 1260,
5/36 = 5 × 35/36 × 35 = 175/1260 - Likewise, for the 2nd fraction, since 70 × 18 = 1260,
21/70 = 21 × 18/70 × 18 = 378/1260 - Add the two like fractions:
175/1260 + 378/1260 = 175 + 378/1260 = 553/1260 - 553/1260 simplified gives 79/180
- So, 5/36 + 21/70 = 79/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/36+21/70 5/36+42/70 5/72+21/70 15/36+21/70 5/36+63/70 25/36+21/70 35/36+21/70