Add 5/30 and 12/45
5/30 + 12/45 is 13/30.
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,
5/30 = 5 × 3/30 × 3 = 15/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
12/45 = 12 × 2/45 × 2 = 24/90 - Add the two like fractions:
15/90 + 24/90 = 15 + 24/90 = 39/90 - 39/90 simplified gives 13/30
- So, 5/30 + 12/45 = 13/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/30+12/45 5/30+24/45 5/60+12/45 5/30+12/90 15/30+12/45 5/30+36/45 5/90+12/45 25/30+12/45 5/30+60/45 35/30+12/45 5/30+84/45