Add 40/30 and 21/48
1st number: 1 10/30, 2nd number: 21/48
40/30 + 21/48 is 85/48.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 48 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 30 × 8 = 240,
40/30 = 40 × 8/30 × 8 = 320/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
21/48 = 21 × 5/48 × 5 = 105/240 - Add the two like fractions:
320/240 + 105/240 = 320 + 105/240 = 425/240 - 425/240 simplified gives 85/48
- So, 40/30 + 21/48 = 85/48
In mixed form: 137/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/30+21/48 40/30+42/48 40/60+21/48 40/30+21/96 40/30+63/48 40/90+21/48