Add 45/80 and 70/45
1st number: 45/80, 2nd number: 1 25/45
45/80 + 70/45 is 305/144.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 45 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
45/80 = 45 × 9/80 × 9 = 405/720 - Likewise, for the 2nd fraction, since 45 × 16 = 720,
70/45 = 70 × 16/45 × 16 = 1120/720 - Add the two like fractions:
405/720 + 1120/720 = 405 + 1120/720 = 1525/720 - 1525/720 simplified gives 305/144
- So, 45/80 + 70/45 = 305/144
In mixed form: 217/144
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