Add 7/4 and 63/45
1st number: 1 3/4, 2nd number: 1 18/45
7/4 + 63/45 is 63/20.
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,
7/4 = 7 × 45/4 × 45 = 315/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
63/45 = 63 × 4/45 × 4 = 252/180 - Add the two like fractions:
315/180 + 252/180 = 315 + 252/180 = 567/180 - 567/180 simplified gives 63/20
- So, 7/4 + 63/45 = 63/20
In mixed form: 33/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/4+63/45 7/8+63/45 7/4+63/90 21/4+63/45 7/12+63/45 35/4+63/45 7/20+63/45 49/4+63/45 7/28+63/45