Add 30/90 and 72/14
1st number: 30/90, 2nd number: 5 2/14
30/90 + 72/14 is 115/21.
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,
72/14 = 72 × 45/14 × 45 = 3240/630 - Add the two like fractions:
210/630 + 3240/630 = 210 + 3240/630 = 3450/630 - 3450/630 simplified gives 115/21
- So, 30/90 + 72/14 = 115/21
In mixed form: 510/21
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