Add 80/42 and 18/45
1st number: 1 38/42, 2nd number: 18/45
80/42 + 18/45 is 242/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 42 × 15 = 630,
80/42 = 80 × 15/42 × 15 = 1200/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
18/45 = 18 × 14/45 × 14 = 252/630 - Add the two like fractions:
1200/630 + 252/630 = 1200 + 252/630 = 1452/630 - 1452/630 simplified gives 242/105
- So, 80/42 + 18/45 = 242/105
In mixed form: 232/105
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