Add 45/60 and 42/40
1st number: 45/60, 2nd number: 1 2/40
45/60 + 42/40 is 9/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 60 × 2 = 120,
45/60 = 45 × 2/60 × 2 = 90/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
42/40 = 42 × 3/40 × 3 = 126/120 - Add the two like fractions:
90/120 + 126/120 = 90 + 126/120 = 216/120 - 216/120 simplified gives 9/5
- So, 45/60 + 42/40 = 9/5
In mixed form: 14/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/60+42/40 45/60+84/40 45/60+42/80