Add 18/90 and 80/7
1st number: 18/90, 2nd number: 11 3/7
18/90 + 80/7 is 407/35.
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,
18/90 = 18 × 7/90 × 7 = 126/630 - Likewise, for the 2nd fraction, since 7 × 90 = 630,
80/7 = 80 × 90/7 × 90 = 7200/630 - Add the two like fractions:
126/630 + 7200/630 = 126 + 7200/630 = 7326/630 - 7326/630 simplified gives 407/35
- So, 18/90 + 80/7 = 407/35
In mixed form: 1122/35
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