Add 21/5 and 20/54
1st number: 4 1/5, 2nd number: 20/54
21/5 + 20/54 is 617/135.
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,
21/5 = 21 × 54/5 × 54 = 1134/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
20/54 = 20 × 5/54 × 5 = 100/270 - Add the two like fractions:
1134/270 + 100/270 = 1134 + 100/270 = 1234/270 - 1234/270 simplified gives 617/135
- So, 21/5 + 20/54 = 617/135
In mixed form: 477/135
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