Add 21/48 and 3/5
21/48 + 3/5 is 83/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 5 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
21/48 = 21 × 5/48 × 5 = 105/240 - Likewise, for the 2nd fraction, since 5 × 48 = 240,
3/5 = 3 × 48/5 × 48 = 144/240 - Add the two like fractions:
105/240 + 144/240 = 105 + 144/240 = 249/240 - 249/240 simplified gives 83/80
- So, 21/48 + 3/5 = 83/80
In mixed form: 13/80
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