Add 7/45 and 84/4
1st number: 7/45, 2nd number: 21 0/4
7/45 + 84/4 is 952/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 4 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
7/45 = 7 × 4/45 × 4 = 28/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
84/4 = 84 × 45/4 × 45 = 3780/180 - Add the two like fractions:
28/180 + 3780/180 = 28 + 3780/180 = 3808/180 - 3808/180 simplified gives 952/45
- So, 7/45 + 84/4 = 952/45
In mixed form: 217/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/45+84/4 7/90+84/4 7/45+84/8 21/45+84/4 7/45+84/12 35/45+84/4 7/45+84/20 49/45+84/4 7/45+84/28