Add 81/14 and 20/45
1st number: 5 11/14, 2nd number: 20/45
81/14 + 20/45 is 785/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 14 × 45 = 630,
81/14 = 81 × 45/14 × 45 = 3645/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
20/45 = 20 × 14/45 × 14 = 280/630 - Add the two like fractions:
3645/630 + 280/630 = 3645 + 280/630 = 3925/630 - 3925/630 simplified gives 785/126
- So, 81/14 + 20/45 = 785/126
In mixed form: 629/126
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