Add 70/72 and 90/14
1st number: 70/72, 2nd number: 6 6/14
70/72 + 90/14 is 1865/252.
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,
70/72 = 70 × 7/72 × 7 = 490/504 - Likewise, for the 2nd fraction, since 14 × 36 = 504,
90/14 = 90 × 36/14 × 36 = 3240/504 - Add the two like fractions:
490/504 + 3240/504 = 490 + 3240/504 = 3730/504 - 3730/504 simplified gives 1865/252
- So, 70/72 + 90/14 = 1865/252
In mixed form: 7101/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/72+90/28 70/72+90/42 70/72+90/70 70/72+90/98