Add 12/16 and 45/30
1st number: 12/16, 2nd number: 1 15/30
12/16 + 45/30 is 9/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 30 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 16 × 15 = 240,
12/16 = 12 × 15/16 × 15 = 180/240 - Likewise, for the 2nd fraction, since 30 × 8 = 240,
45/30 = 45 × 8/30 × 8 = 360/240 - Add the two like fractions:
180/240 + 360/240 = 180 + 360/240 = 540/240 - 540/240 simplified gives 9/4
- So, 12/16 + 45/30 = 9/4
In mixed form: 21/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/16+45/30 12/16+90/30 12/32+45/30 12/16+45/60 36/16+45/30 12/48+45/30 12/16+45/90 60/16+45/30 12/80+45/30 84/16+45/30