Add 40/7 and 80/90
1st number: 5 5/7, 2nd number: 80/90
40/7 + 80/90 is 416/63.
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,
40/7 = 40 × 90/7 × 90 = 3600/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
80/90 = 80 × 7/90 × 7 = 560/630 - Add the two like fractions:
3600/630 + 560/630 = 3600 + 560/630 = 4160/630 - 4160/630 simplified gives 416/63
- So, 40/7 + 80/90 = 416/63
In mixed form: 638/63
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