Add 20/5 and 21/54
1st number: 4 0/5, 2nd number: 21/54
20/5 + 21/54 is 79/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 5 × 54 = 270,
20/5 = 20 × 54/5 × 54 = 1080/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
21/54 = 21 × 5/54 × 5 = 105/270 - Add the two like fractions:
1080/270 + 105/270 = 1080 + 105/270 = 1185/270 - 1185/270 simplified gives 79/18
- So, 20/5 + 21/54 = 79/18
In mixed form: 47/18
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