Add 80/45 and 63/42
1st number: 1 35/45, 2nd number: 1 21/42
80/45 + 63/42 is 59/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 42 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
80/45 = 80 × 14/45 × 14 = 1120/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
63/42 = 63 × 15/42 × 15 = 945/630 - Add the two like fractions:
1120/630 + 945/630 = 1120 + 945/630 = 2065/630 - 2065/630 simplified gives 59/18
- So, 80/45 + 63/42 = 59/18
In mixed form: 35/18
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