Add 12/30 and 35/45
12/30 + 35/45 is 53/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
12/30 = 12 × 3/30 × 3 = 36/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
35/45 = 35 × 2/45 × 2 = 70/90 - Add the two like fractions:
36/90 + 70/90 = 36 + 70/90 = 106/90 - 106/90 simplified gives 53/45
- So, 12/30 + 35/45 = 53/45
In mixed form: 18/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/30+35/45 12/30+70/45 12/60+35/45 12/30+35/90 36/30+35/45 12/90+35/45 60/30+35/45 84/30+35/45