Add 70/20 and 21/54
1st number: 3 10/20, 2nd number: 21/54
70/20 + 21/54 is 35/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 54 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 20 × 27 = 540,
70/20 = 70 × 27/20 × 27 = 1890/540 - Likewise, for the 2nd fraction, since 54 × 10 = 540,
21/54 = 21 × 10/54 × 10 = 210/540 - Add the two like fractions:
1890/540 + 210/540 = 1890 + 210/540 = 2100/540 - 2100/540 simplified gives 35/9
- So, 70/20 + 21/54 = 35/9
In mixed form: 38/9
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