Add 70/25 and 42/16
1st number: 2 20/25, 2nd number: 2 10/16
70/25 + 42/16 is 217/40.
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,
70/25 = 70 × 16/25 × 16 = 1120/400 - Likewise, for the 2nd fraction, since 16 × 25 = 400,
42/16 = 42 × 25/16 × 25 = 1050/400 - Add the two like fractions:
1120/400 + 1050/400 = 1120 + 1050/400 = 2170/400 - 2170/400 simplified gives 217/40
- So, 70/25 + 42/16 = 217/40
In mixed form: 517/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/25+84/16 70/50+42/16 70/25+42/32 70/75+42/16 70/25+42/48 70/25+42/80