Add 72/63 and 98/12
1st number: 1 9/63, 2nd number: 8 2/12
72/63 + 98/12 is 391/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 12 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
72/63 = 72 × 4/63 × 4 = 288/252 - Likewise, for the 2nd fraction, since 12 × 21 = 252,
98/12 = 98 × 21/12 × 21 = 2058/252 - Add the two like fractions:
288/252 + 2058/252 = 288 + 2058/252 = 2346/252 - 2346/252 simplified gives 391/42
- So, 72/63 + 98/12 = 391/42
In mixed form: 913/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/63+98/24 72/63+98/36 72/63+98/60 72/63+98/84