Add 36/21 and 48/40
1st number: 1 15/21, 2nd number: 1 8/40
36/21 + 48/40 is 102/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 40 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 21 × 40 = 840,
36/21 = 36 × 40/21 × 40 = 1440/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
48/40 = 48 × 21/40 × 21 = 1008/840 - Add the two like fractions:
1440/840 + 1008/840 = 1440 + 1008/840 = 2448/840 - 2448/840 simplified gives 102/35
- So, 36/21 + 48/40 = 102/35
In mixed form: 232/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/21+48/40 36/21+96/40 36/42+48/40 36/21+48/80 36/63+48/40