Add 21/48 and 18/30
21/48 + 18/30 is 83/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 30 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 30 × 8 = 240,
18/30 = 18 × 8/30 × 8 = 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 + 18/30 = 83/80
In mixed form: 13/80
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