Add 70/60 and 12/45
1st number: 1 10/60, 2nd number: 12/45
70/60 + 12/45 is 43/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
70/60 = 70 × 3/60 × 3 = 210/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
12/45 = 12 × 4/45 × 4 = 48/180 - Add the two like fractions:
210/180 + 48/180 = 210 + 48/180 = 258/180 - 258/180 simplified gives 43/30
- So, 70/60 + 12/45 = 43/30
In mixed form: 113/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/60+24/45 70/60+12/90 70/60+36/45 70/60+60/45 70/60+84/45