Add 70/25 and 12/40
1st number: 2 20/25, 2nd number: 12/40
70/25 + 12/40 is 31/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 40 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 25 × 8 = 200,
70/25 = 70 × 8/25 × 8 = 560/200 - Likewise, for the 2nd fraction, since 40 × 5 = 200,
12/40 = 12 × 5/40 × 5 = 60/200 - Add the two like fractions:
560/200 + 60/200 = 560 + 60/200 = 620/200 - 620/200 simplified gives 31/10
- So, 70/25 + 12/40 = 31/10
In mixed form: 31/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/25+24/40 70/50+12/40 70/25+12/80 70/25+36/40 70/75+12/40 70/25+60/40 70/25+84/40