Add 54/42 and 90/50
1st number: 1 12/42, 2nd number: 1 40/50
54/42 + 90/50 is 108/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 50 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 42 × 25 = 1050,
54/42 = 54 × 25/42 × 25 = 1350/1050 - Likewise, for the 2nd fraction, since 50 × 21 = 1050,
90/50 = 90 × 21/50 × 21 = 1890/1050 - Add the two like fractions:
1350/1050 + 1890/1050 = 1350 + 1890/1050 = 3240/1050 - 3240/1050 simplified gives 108/35
- So, 54/42 + 90/50 = 108/35
In mixed form: 33/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/84+90/50