Add 20/25 and 42/16
1st number: 20/25, 2nd number: 2 10/16
20/25 + 42/16 is 137/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 16 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 25 × 16 = 400,
20/25 = 20 × 16/25 × 16 = 320/400 - Likewise, for the 2nd fraction, since 16 × 25 = 400,
42/16 = 42 × 25/16 × 25 = 1050/400 - Add the two like fractions:
320/400 + 1050/400 = 320 + 1050/400 = 1370/400 - 1370/400 simplified gives 137/40
- So, 20/25 + 42/16 = 137/40
In mixed form: 317/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/25+42/16 20/25+84/16 20/50+42/16 20/25+42/32 60/25+42/16 20/75+42/16 20/25+42/48 20/25+42/80