Add 7/49 and 18/72
7/49 + 18/72 is 11/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 72 is 3528
Next, find the equivalent fraction of both fractional numbers with denominator 3528 - For the 1st fraction, since 49 × 72 = 3528,
7/49 = 7 × 72/49 × 72 = 504/3528 - Likewise, for the 2nd fraction, since 72 × 49 = 3528,
18/72 = 18 × 49/72 × 49 = 882/3528 - Add the two like fractions:
504/3528 + 882/3528 = 504 + 882/3528 = 1386/3528 - 1386/3528 simplified gives 11/28
- So, 7/49 + 18/72 = 11/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/49+18/72 7/49+36/72 7/98+18/72 21/49+18/72 7/49+54/72 35/49+18/72 7/49+90/72