Add 21/48 and 30/40
21/48 + 30/40 is 19/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 40 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 40 × 6 = 240,
30/40 = 30 × 6/40 × 6 = 180/240 - Add the two like fractions:
105/240 + 180/240 = 105 + 180/240 = 285/240 - 285/240 simplified gives 19/16
- So, 21/48 + 30/40 = 19/16
In mixed form: 13/16
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