Add 72/27 and 21/10
1st number: 2 18/27, 2nd number: 2 1/10
72/27 + 21/10 is 143/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 10 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 27 × 10 = 270,
72/27 = 72 × 10/27 × 10 = 720/270 - Likewise, for the 2nd fraction, since 10 × 27 = 270,
21/10 = 21 × 27/10 × 27 = 567/270 - Add the two like fractions:
720/270 + 567/270 = 720 + 567/270 = 1287/270 - 1287/270 simplified gives 143/30
- So, 72/27 + 21/10 = 143/30
In mixed form: 423/30
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