Add 5/42 and 90/60
1st number: 5/42, 2nd number: 1 30/60
5/42 + 90/60 is 34/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 42 × 10 = 420,
5/42 = 5 × 10/42 × 10 = 50/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
90/60 = 90 × 7/60 × 7 = 630/420 - Add the two like fractions:
50/420 + 630/420 = 50 + 630/420 = 680/420 - 680/420 simplified gives 34/21
- So, 5/42 + 90/60 = 34/21
In mixed form: 113/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/42+90/60 5/84+90/60 15/42+90/60 25/42+90/60 35/42+90/60