Add 54/12 and 21/20
1st number: 4 6/12, 2nd number: 1 1/20
54/12 + 21/20 is 111/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
54/12 = 54 × 5/12 × 5 = 270/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
21/20 = 21 × 3/20 × 3 = 63/60 - Add the two like fractions:
270/60 + 63/60 = 270 + 63/60 = 333/60 - 333/60 simplified gives 111/20
- So, 54/12 + 21/20 = 111/20
In mixed form: 511/20
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