Add 70/45 and 12/16
1st number: 1 25/45, 2nd number: 12/16
70/45 + 12/16 is 83/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 16 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
70/45 = 70 × 16/45 × 16 = 1120/720 - Likewise, for the 2nd fraction, since 16 × 45 = 720,
12/16 = 12 × 45/16 × 45 = 540/720 - Add the two like fractions:
1120/720 + 540/720 = 1120 + 540/720 = 1660/720 - 1660/720 simplified gives 83/36
- So, 70/45 + 12/16 = 83/36
In mixed form: 211/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/45+24/16 70/90+12/16 70/45+12/32 70/45+36/16 70/45+12/48 70/45+60/16 70/45+12/80 70/45+84/16