Add 80/42 and 25/45
1st number: 1 38/42, 2nd number: 25/45
80/42 + 25/45 is 155/63.
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,
25/45 = 25 × 14/45 × 14 = 350/630 - Add the two like fractions:
1200/630 + 350/630 = 1200 + 350/630 = 1550/630 - 1550/630 simplified gives 155/63
- So, 80/42 + 25/45 = 155/63
In mixed form: 229/63
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