Add 28/14 and 81/90
1st number: 2 0/14, 2nd number: 81/90
28/14 + 81/90 is 29/10.
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,
28/14 = 28 × 45/14 × 45 = 1260/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
81/90 = 81 × 7/90 × 7 = 567/630 - Add the two like fractions:
1260/630 + 567/630 = 1260 + 567/630 = 1827/630 - 1827/630 simplified gives 29/10
- So, 28/14 + 81/90 = 29/10
In mixed form: 29/10
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