Add 21/3 and 70/72
1st number: 7 0/3, 2nd number: 70/72
21/3 + 70/72 is 287/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 3 × 24 = 72,
21/3 = 21 × 24/3 × 24 = 504/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
70/72 = 70 × 1/72 × 1 = 70/72 - Add the two like fractions:
504/72 + 70/72 = 504 + 70/72 = 574/72 - 574/72 simplified gives 287/36
- So, 21/3 + 70/72 = 287/36
In mixed form: 735/36
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