Add 45/25 and 70/12
1st number: 1 20/25, 2nd number: 5 10/12
45/25 + 70/12 is 229/30.
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,
45/25 = 45 × 12/25 × 12 = 540/300 - Likewise, for the 2nd fraction, since 12 × 25 = 300,
70/12 = 70 × 25/12 × 25 = 1750/300 - Add the two like fractions:
540/300 + 1750/300 = 540 + 1750/300 = 2290/300 - 2290/300 simplified gives 229/30
- So, 45/25 + 70/12 = 229/30
In mixed form: 719/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/25+70/12 45/50+70/12 45/25+70/24 45/75+70/12 45/25+70/36 45/25+70/60 45/25+70/84