Add 21/10 and 42/27
1st number: 2 1/10, 2nd number: 1 15/27
21/10 + 42/27 is 329/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 10 × 27 = 270,
21/10 = 21 × 27/10 × 27 = 567/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
42/27 = 42 × 10/27 × 10 = 420/270 - Add the two like fractions:
567/270 + 420/270 = 567 + 420/270 = 987/270 - 987/270 simplified gives 329/90
- So, 21/10 + 42/27 = 329/90
In mixed form: 359/90
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