Add 42/80 and 8/25
42/80 + 8/25 is 169/200.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 25 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 80 × 5 = 400,
42/80 = 42 × 5/80 × 5 = 210/400 - Likewise, for the 2nd fraction, since 25 × 16 = 400,
8/25 = 8 × 16/25 × 16 = 128/400 - Add the two like fractions:
210/400 + 128/400 = 210 + 128/400 = 338/400 - 338/400 simplified gives 169/200
- So, 42/80 + 8/25 = 169/200
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/80+8/25 42/80+16/25 42/80+8/50 42/80+24/25 42/80+8/75 42/80+40/25 42/80+56/25