Add 45/70 and 20/7
1st number: 45/70, 2nd number: 2 6/7
45/70 + 20/7 is 7/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 7 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
45/70 = 45 × 1/70 × 1 = 45/70 - Likewise, for the 2nd fraction, since 7 × 10 = 70,
20/7 = 20 × 10/7 × 10 = 200/70 - Add the two like fractions:
45/70 + 200/70 = 45 + 200/70 = 245/70 - 245/70 simplified gives 7/2
- So, 45/70 + 20/7 = 7/2
In mixed form: 31/2
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