Add 42/4 and 8/5
1st number: 10 2/4, 2nd number: 1 3/5
42/4 + 8/5 is 121/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
42/4 = 42 × 5/4 × 5 = 210/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
8/5 = 8 × 4/5 × 4 = 32/20 - Add the two like fractions:
210/20 + 32/20 = 210 + 32/20 = 242/20 - 242/20 simplified gives 121/10
- So, 42/4 + 8/5 = 121/10
In mixed form: 121/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/4+8/5 42/4+16/5 42/8+8/5 42/4+8/10 42/4+24/5 42/12+8/5 42/4+8/15 42/4+40/5 42/20+8/5 42/4+8/25 42/4+56/5 42/28+8/5 42/4+8/35