Add 42/7 and 84/90
1st number: 6 0/7, 2nd number: 84/90
42/7 + 84/90 is 104/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 7 × 90 = 630,
42/7 = 42 × 90/7 × 90 = 3780/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
84/90 = 84 × 7/90 × 7 = 588/630 - Add the two like fractions:
3780/630 + 588/630 = 3780 + 588/630 = 4368/630 - 4368/630 simplified gives 104/15
- So, 42/7 + 84/90 = 104/15
In mixed form: 614/15
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