Add 1/42 and 50/40
1st number: 1/42, 2nd number: 1 10/40
1/42 + 50/40 is 107/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 40 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 42 × 20 = 840,
1/42 = 1 × 20/42 × 20 = 20/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
50/40 = 50 × 21/40 × 21 = 1050/840 - Add the two like fractions:
20/840 + 1050/840 = 20 + 1050/840 = 1070/840 - 1070/840 simplified gives 107/84
- So, 1/42 + 50/40 = 107/84
In mixed form: 123/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/42+50/40 1/84+50/40 1/42+50/80 3/42+50/40 5/42+50/40 7/42+50/40