Add 27/10 and 21/45
1st number: 2 7/10, 2nd number: 21/45
27/10 + 21/45 is 19/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
27/10 = 27 × 9/10 × 9 = 243/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
21/45 = 21 × 2/45 × 2 = 42/90 - Add the two like fractions:
243/90 + 42/90 = 243 + 42/90 = 285/90 - 285/90 simplified gives 19/6
- So, 27/10 + 21/45 = 19/6
In mixed form: 31/6
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