Add 12/4 and 4/45
1st number: 3 0/4, 2nd number: 4/45
12/4 + 4/45 is 139/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
12/4 = 12 × 45/4 × 45 = 540/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
4/45 = 4 × 4/45 × 4 = 16/180 - Add the two like fractions:
540/180 + 16/180 = 540 + 16/180 = 556/180 - 556/180 simplified gives 139/45
- So, 12/4 + 4/45 = 139/45
In mixed form: 34/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/4+4/45 12/4+8/45 12/8+4/45 12/4+4/90 36/4+4/45 12/4+12/45 60/4+4/45 12/4+20/45 12/20+4/45 84/4+4/45 12/4+28/45 12/28+4/45