Add 84/21 and 28/90
1st number: 4 0/21, 2nd number: 28/90
84/21 + 28/90 is 194/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 21 × 30 = 630,
84/21 = 84 × 30/21 × 30 = 2520/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
28/90 = 28 × 7/90 × 7 = 196/630 - Add the two like fractions:
2520/630 + 196/630 = 2520 + 196/630 = 2716/630 - 2716/630 simplified gives 194/45
- So, 84/21 + 28/90 = 194/45
In mixed form: 414/45
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