Add 84/90 and 63/4
1st number: 84/90, 2nd number: 15 3/4
84/90 + 63/4 is 1001/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 4 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
84/90 = 84 × 2/90 × 2 = 168/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
63/4 = 63 × 45/4 × 45 = 2835/180 - Add the two like fractions:
168/180 + 2835/180 = 168 + 2835/180 = 3003/180 - 3003/180 simplified gives 1001/60
- So, 84/90 + 63/4 = 1001/60
In mixed form: 1641/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/90+63/8 84/90+63/12 84/90+63/20 84/90+63/28