Add 30/4 and 72/63
1st number: 7 2/4, 2nd number: 1 9/63
30/4 + 72/63 is 121/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 4 × 63 = 252,
30/4 = 30 × 63/4 × 63 = 1890/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
72/63 = 72 × 4/63 × 4 = 288/252 - Add the two like fractions:
1890/252 + 288/252 = 1890 + 288/252 = 2178/252 - 2178/252 simplified gives 121/14
- So, 30/4 + 72/63 = 121/14
In mixed form: 89/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/4+72/63 30/8+72/63 90/4+72/63 30/12+72/63 30/20+72/63 30/28+72/63