Add 56/84 and 98/90
1st number: 56/84, 2nd number: 1 8/90
56/84 + 98/90 is 79/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 90 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 84 × 15 = 1260,
56/84 = 56 × 15/84 × 15 = 840/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
98/90 = 98 × 14/90 × 14 = 1372/1260 - Add the two like fractions:
840/1260 + 1372/1260 = 840 + 1372/1260 = 2212/1260 - 2212/1260 simplified gives 79/45
- So, 56/84 + 98/90 = 79/45
In mixed form: 134/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: