Add 70/25 and 15/12
1st number: 2 20/25, 2nd number: 1 3/12
70/25 + 15/12 is 81/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 12 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 25 × 12 = 300,
70/25 = 70 × 12/25 × 12 = 840/300 - Likewise, for the 2nd fraction, since 12 × 25 = 300,
15/12 = 15 × 25/12 × 25 = 375/300 - Add the two like fractions:
840/300 + 375/300 = 840 + 375/300 = 1215/300 - 1215/300 simplified gives 81/20
- So, 70/25 + 15/12 = 81/20
In mixed form: 41/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/25+30/12 70/50+15/12 70/25+15/24 70/25+45/12 70/75+15/12 70/25+15/36 70/25+75/12 70/25+15/60 70/25+15/84