Add 42/5 and 21/48
1st number: 8 2/5, 2nd number: 21/48
42/5 + 21/48 is 707/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 48 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 5 × 48 = 240,
42/5 = 42 × 48/5 × 48 = 2016/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
21/48 = 21 × 5/48 × 5 = 105/240 - Add the two like fractions:
2016/240 + 105/240 = 2016 + 105/240 = 2121/240 - 2121/240 simplified gives 707/80
- So, 42/5 + 21/48 = 707/80
In mixed form: 867/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/5+21/48 42/5+42/48 42/10+21/48 42/5+21/96 42/5+63/48 42/15+21/48 42/25+21/48 42/35+21/48