Add 42/80 and 1/4
42/80 + 1/4 is 31/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 4 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
42/80 = 42 × 1/80 × 1 = 42/80 - Likewise, for the 2nd fraction, since 4 × 20 = 80,
1/4 = 1 × 20/4 × 20 = 20/80 - Add the two like fractions:
42/80 + 20/80 = 42 + 20/80 = 62/80 - 62/80 simplified gives 31/40
- So, 42/80 + 1/4 = 31/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/80+1/4 42/80+2/4 42/80+1/8 42/80+3/4 42/80+1/12 42/80+5/4 42/80+1/20 42/80+7/4 42/80+1/28