Add 42/60 and 3/8
42/60 + 3/8 is 43/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 60 × 2 = 120,
42/60 = 42 × 2/60 × 2 = 84/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
3/8 = 3 × 15/8 × 15 = 45/120 - Add the two like fractions:
84/120 + 45/120 = 84 + 45/120 = 129/120 - 129/120 simplified gives 43/40
- So, 42/60 + 3/8 = 43/40
In mixed form: 13/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/60+3/8 42/60+6/8 42/60+3/16 42/60+9/8 42/60+3/24 42/60+15/8 42/60+3/40 42/60+21/8 42/60+3/56