Add 27/21 and 90/10
1st number: 1 6/21, 2nd number: 9 0/10
27/21 + 90/10 is 72/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 10 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
27/21 = 27 × 10/21 × 10 = 270/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
90/10 = 90 × 21/10 × 21 = 1890/210 - Add the two like fractions:
270/210 + 1890/210 = 270 + 1890/210 = 2160/210 - 2160/210 simplified gives 72/7
- So, 27/21 + 90/10 = 72/7
In mixed form: 102/7
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