Add 30/90 and 81/14
1st number: 30/90, 2nd number: 5 11/14
30/90 + 81/14 is 257/42.
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,
30/90 = 30 × 7/90 × 7 = 210/630 - Likewise, for the 2nd fraction, since 14 × 45 = 630,
81/14 = 81 × 45/14 × 45 = 3645/630 - Add the two like fractions:
210/630 + 3645/630 = 210 + 3645/630 = 3855/630 - 3855/630 simplified gives 257/42
- So, 30/90 + 81/14 = 257/42
In mixed form: 65/42
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