Add 90/8 and 42/60
1st number: 11 2/8, 2nd number: 42/60
90/8 + 42/60 is 239/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 60 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
90/8 = 90 × 15/8 × 15 = 1350/120 - Likewise, for the 2nd fraction, since 60 × 2 = 120,
42/60 = 42 × 2/60 × 2 = 84/120 - Add the two like fractions:
1350/120 + 84/120 = 1350 + 84/120 = 1434/120 - 1434/120 simplified gives 239/20
- So, 90/8 + 42/60 = 239/20
In mixed form: 1119/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/8+84/60 90/16+42/60 90/24+42/60 90/40+42/60 90/56+42/60