Add 10/80 and 70/45
1st number: 10/80, 2nd number: 1 25/45
10/80 + 70/45 is 121/72.
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,
10/80 = 10 × 9/80 × 9 = 90/720 - Likewise, for the 2nd fraction, since 45 × 16 = 720,
70/45 = 70 × 16/45 × 16 = 1120/720 - Add the two like fractions:
90/720 + 1120/720 = 90 + 1120/720 = 1210/720 - 1210/720 simplified gives 121/72
- So, 10/80 + 70/45 = 121/72
In mixed form: 149/72
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