Add 84/45 and 70/54
1st number: 1 39/45, 2nd number: 1 16/54
84/45 + 70/54 is 427/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 45 × 6 = 270,
84/45 = 84 × 6/45 × 6 = 504/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
70/54 = 70 × 5/54 × 5 = 350/270 - Add the two like fractions:
504/270 + 350/270 = 504 + 350/270 = 854/270 - 854/270 simplified gives 427/135
- So, 84/45 + 70/54 = 427/135
In mixed form: 322/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/90+70/54