Add 48/40 and 3/42
1st number: 1 8/40, 2nd number: 3/42
48/40 + 3/42 is 89/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 42 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
48/40 = 48 × 21/40 × 21 = 1008/840 - Likewise, for the 2nd fraction, since 42 × 20 = 840,
3/42 = 3 × 20/42 × 20 = 60/840 - Add the two like fractions:
1008/840 + 60/840 = 1008 + 60/840 = 1068/840 - 1068/840 simplified gives 89/70
- So, 48/40 + 3/42 = 89/70
In mixed form: 119/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/40+3/42 48/40+6/42 48/80+3/42 48/40+3/84 48/40+9/42 48/40+15/42 48/40+21/42