Add 12/90 and 42/7
1st number: 12/90, 2nd number: 6 0/7
12/90 + 42/7 is 92/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 7 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
12/90 = 12 × 7/90 × 7 = 84/630 - Likewise, for the 2nd fraction, since 7 × 90 = 630,
42/7 = 42 × 90/7 × 90 = 3780/630 - Add the two like fractions:
84/630 + 3780/630 = 84 + 3780/630 = 3864/630 - 3864/630 simplified gives 92/15
- So, 12/90 + 42/7 = 92/15
In mixed form: 62/15
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