Add 21/14 and 36/90
1st number: 1 7/14, 2nd number: 36/90
21/14 + 36/90 is 19/10.
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,
36/90 = 36 × 7/90 × 7 = 252/630 - Add the two like fractions:
945/630 + 252/630 = 945 + 252/630 = 1197/630 - 1197/630 simplified gives 19/10
- So, 21/14 + 36/90 = 19/10
In mixed form: 19/10
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