Add 4/5 and 21/54
4/5 + 21/54 is 107/90.
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,
4/5 = 4 × 54/5 × 54 = 216/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
21/54 = 21 × 5/54 × 5 = 105/270 - Add the two like fractions:
216/270 + 105/270 = 216 + 105/270 = 321/270 - 321/270 simplified gives 107/90
- So, 4/5 + 21/54 = 107/90
In mixed form: 117/90
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