Add 21/30 and 54/36
1st number: 21/30, 2nd number: 1 18/36
21/30 + 54/36 is 11/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 30 × 6 = 180,
21/30 = 21 × 6/30 × 6 = 126/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
54/36 = 54 × 5/36 × 5 = 270/180 - Add the two like fractions:
126/180 + 270/180 = 126 + 270/180 = 396/180 - 396/180 simplified gives 11/5
- So, 21/30 + 54/36 = 11/5
In mixed form: 21/5
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