Add 90/56 and 84/90
1st number: 1 34/56, 2nd number: 84/90
90/56 + 84/90 is 1067/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 90 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
90/56 = 90 × 45/56 × 45 = 4050/2520 - Likewise, for the 2nd fraction, since 90 × 28 = 2520,
84/90 = 84 × 28/90 × 28 = 2352/2520 - Add the two like fractions:
4050/2520 + 2352/2520 = 4050 + 2352/2520 = 6402/2520 - 6402/2520 simplified gives 1067/420
- So, 90/56 + 84/90 = 1067/420
In mixed form: 2227/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: