Add 4/12 and 8/45
4/12 + 8/45 is 23/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
4/12 = 4 × 15/12 × 15 = 60/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
8/45 = 8 × 4/45 × 4 = 32/180 - Add the two like fractions:
60/180 + 32/180 = 60 + 32/180 = 92/180 - 92/180 simplified gives 23/45
- So, 4/12 + 8/45 = 23/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/12+8/45 4/12+16/45 4/24+8/45 4/12+8/90 4/12+24/45 4/36+8/45 20/12+8/45 4/12+40/45 4/60+8/45 28/12+8/45 4/12+56/45 4/84+8/45