Add 21/14 and 35/90
1st number: 1 7/14, 2nd number: 35/90
21/14 + 35/90 is 17/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 14 × 45 = 630,
21/14 = 21 × 45/14 × 45 = 945/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
35/90 = 35 × 7/90 × 7 = 245/630 - Add the two like fractions:
945/630 + 245/630 = 945 + 245/630 = 1190/630 - 1190/630 simplified gives 17/9
- So, 21/14 + 35/90 = 17/9
In mixed form: 18/9
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