Add 1/45 and 12/84
1/45 + 12/84 is 52/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 84 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 45 × 28 = 1260,
1/45 = 1 × 28/45 × 28 = 28/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
12/84 = 12 × 15/84 × 15 = 180/1260 - Add the two like fractions:
28/1260 + 180/1260 = 28 + 180/1260 = 208/1260 - 208/1260 simplified gives 52/315
- So, 1/45 + 12/84 = 52/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/45+12/84 1/45+24/84 1/90+12/84 3/45+12/84 1/45+36/84 5/45+12/84 1/45+60/84 7/45+12/84