Add 21/90 and 36/14
1st number: 21/90, 2nd number: 2 8/14
21/90 + 36/14 is 589/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 14 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
21/90 = 21 × 7/90 × 7 = 147/630 - Likewise, for the 2nd fraction, since 14 × 45 = 630,
36/14 = 36 × 45/14 × 45 = 1620/630 - Add the two like fractions:
147/630 + 1620/630 = 147 + 1620/630 = 1767/630 - 1767/630 simplified gives 589/210
- So, 21/90 + 36/14 = 589/210
In mixed form: 2169/210
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