Add 15/56 and 90/84
1st number: 15/56, 2nd number: 1 6/84
15/56 + 90/84 is 75/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 84 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
15/56 = 15 × 3/56 × 3 = 45/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
90/84 = 90 × 2/84 × 2 = 180/168 - Add the two like fractions:
45/168 + 180/168 = 45 + 180/168 = 225/168 - 225/168 simplified gives 75/56
- So, 15/56 + 90/84 = 75/56
In mixed form: 119/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/56+90/84 45/56+90/84 75/56+90/84