Add 12/15 and 45/49
12/15 + 45/49 is 421/245.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 49 is 735
Next, find the equivalent fraction of both fractional numbers with denominator 735 - For the 1st fraction, since 15 × 49 = 735,
12/15 = 12 × 49/15 × 49 = 588/735 - Likewise, for the 2nd fraction, since 49 × 15 = 735,
45/49 = 45 × 15/49 × 15 = 675/735 - Add the two like fractions:
588/735 + 675/735 = 588 + 675/735 = 1263/735 - 1263/735 simplified gives 421/245
- So, 12/15 + 45/49 = 421/245
In mixed form: 1176/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/15+45/49 12/15+90/49 12/30+45/49 12/15+45/98 36/15+45/49 12/45+45/49 60/15+45/49 12/75+45/49 84/15+45/49