Add 70/80 and 7/4
1st number: 70/80, 2nd number: 1 3/4
70/80 + 7/4 is 21/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 4 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
70/80 = 70 × 1/80 × 1 = 70/80 - Likewise, for the 2nd fraction, since 4 × 20 = 80,
7/4 = 7 × 20/4 × 20 = 140/80 - Add the two like fractions:
70/80 + 140/80 = 70 + 140/80 = 210/80 - 210/80 simplified gives 21/8
- So, 70/80 + 7/4 = 21/8
In mixed form: 25/8
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