Add 90/28 and 14/72
1st number: 3 6/28, 2nd number: 14/72
90/28 + 14/72 is 859/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 28 × 18 = 504,
90/28 = 90 × 18/28 × 18 = 1620/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
14/72 = 14 × 7/72 × 7 = 98/504 - Add the two like fractions:
1620/504 + 98/504 = 1620 + 98/504 = 1718/504 - 1718/504 simplified gives 859/252
- So, 90/28 + 14/72 = 859/252
In mixed form: 3103/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/28+28/72 90/56+14/72 90/28+42/72 90/84+14/72 90/28+70/72 90/28+98/72