Add 3/42 and 80/50
1st number: 3/42, 2nd number: 1 30/50
3/42 + 80/50 is 117/70.
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,
3/42 = 3 × 25/42 × 25 = 75/1050 - Likewise, for the 2nd fraction, since 50 × 21 = 1050,
80/50 = 80 × 21/50 × 21 = 1680/1050 - Add the two like fractions:
75/1050 + 1680/1050 = 75 + 1680/1050 = 1755/1050 - 1755/1050 simplified gives 117/70
- So, 3/42 + 80/50 = 117/70
In mixed form: 147/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/42+80/50 3/84+80/50 9/42+80/50 15/42+80/50 21/42+80/50