Add 28/90 and 84/70
1st number: 28/90, 2nd number: 1 14/70
28/90 + 84/70 is 68/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
28/90 = 28 × 7/90 × 7 = 196/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
84/70 = 84 × 9/70 × 9 = 756/630 - Add the two like fractions:
196/630 + 756/630 = 196 + 756/630 = 952/630 - 952/630 simplified gives 68/45
- So, 28/90 + 84/70 = 68/45
In mixed form: 123/45
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