Add 72/14 and 56/90
1st number: 5 2/14, 2nd number: 56/90
72/14 + 56/90 is 1816/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 14 × 45 = 630,
72/14 = 72 × 45/14 × 45 = 3240/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
56/90 = 56 × 7/90 × 7 = 392/630 - Add the two like fractions:
3240/630 + 392/630 = 3240 + 392/630 = 3632/630 - 3632/630 simplified gives 1816/315
- So, 72/14 + 56/90 = 1816/315
In mixed form: 5241/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/28+56/90 72/42+56/90 72/70+56/90 72/98+56/90