Add 3/80 and 50/42
1st number: 3/80, 2nd number: 1 8/42
3/80 + 50/42 is 2063/1680.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 42 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 80 × 21 = 1680,
3/80 = 3 × 21/80 × 21 = 63/1680 - Likewise, for the 2nd fraction, since 42 × 40 = 1680,
50/42 = 50 × 40/42 × 40 = 2000/1680 - Add the two like fractions:
63/1680 + 2000/1680 = 63 + 2000/1680 = 2063/1680 - So, 3/80 + 50/42 = 2063/1680
In mixed form: 1383/1680
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/80+50/42 3/80+50/84 9/80+50/42 15/80+50/42 21/80+50/42