Add 1/12 and 90/63
1st number: 1/12, 2nd number: 1 27/63
1/12 + 90/63 is 127/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 12 × 21 = 252,
1/12 = 1 × 21/12 × 21 = 21/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
90/63 = 90 × 4/63 × 4 = 360/252 - Add the two like fractions:
21/252 + 360/252 = 21 + 360/252 = 381/252 - 381/252 simplified gives 127/84
- So, 1/12 + 90/63 = 127/84
In mixed form: 143/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/12+90/63 1/24+90/63 3/12+90/63 1/36+90/63 5/12+90/63 1/60+90/63 7/12+90/63 1/84+90/63