Add 90/50 and 12/42
1st number: 1 40/50, 2nd number: 12/42
90/50 + 12/42 is 73/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 42 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 50 × 21 = 1050,
90/50 = 90 × 21/50 × 21 = 1890/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
12/42 = 12 × 25/42 × 25 = 300/1050 - Add the two like fractions:
1890/1050 + 300/1050 = 1890 + 300/1050 = 2190/1050 - 2190/1050 simplified gives 73/35
- So, 90/50 + 12/42 = 73/35
In mixed form: 23/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/50+24/42 90/50+12/84 90/50+36/42 90/50+60/42 90/50+84/42