Add 70/75 and 30/80
70/75 + 30/80 is 157/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 80 is 1200
Next, find the equivalent fraction of both fractional numbers with denominator 1200 - For the 1st fraction, since 75 × 16 = 1200,
70/75 = 70 × 16/75 × 16 = 1120/1200 - Likewise, for the 2nd fraction, since 80 × 15 = 1200,
30/80 = 30 × 15/80 × 15 = 450/1200 - Add the two like fractions:
1120/1200 + 450/1200 = 1120 + 450/1200 = 1570/1200 - 1570/1200 simplified gives 157/120
- So, 70/75 + 30/80 = 157/120
In mixed form: 137/120
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