Add 84/16 and 30/45
1st number: 5 4/16, 2nd number: 30/45
84/16 + 30/45 is 71/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 45 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
84/16 = 84 × 45/16 × 45 = 3780/720 - Likewise, for the 2nd fraction, since 45 × 16 = 720,
30/45 = 30 × 16/45 × 16 = 480/720 - Add the two like fractions:
3780/720 + 480/720 = 3780 + 480/720 = 4260/720 - 4260/720 simplified gives 71/12
- So, 84/16 + 30/45 = 71/12
In mixed form: 511/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/16+60/45 84/32+30/45 84/16+30/90 84/16+90/45 84/48+30/45 84/80+30/45