Add 42/60 and 63/45
1st number: 42/60, 2nd number: 1 18/45
42/60 + 63/45 is 21/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
42/60 = 42 × 3/60 × 3 = 126/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
63/45 = 63 × 4/45 × 4 = 252/180 - Add the two like fractions:
126/180 + 252/180 = 126 + 252/180 = 378/180 - 378/180 simplified gives 21/10
- So, 42/60 + 63/45 = 21/10
In mixed form: 21/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/60+63/45 42/60+63/90