Add 7/18 and 21/10
1st number: 7/18, 2nd number: 2 1/10
7/18 + 21/10 is 112/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
7/18 = 7 × 5/18 × 5 = 35/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
21/10 = 21 × 9/10 × 9 = 189/90 - Add the two like fractions:
35/90 + 189/90 = 35 + 189/90 = 224/90 - 224/90 simplified gives 112/45
- So, 7/18 + 21/10 = 112/45
In mixed form: 222/45
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