Add 28/49 and 72/70
1st number: 28/49, 2nd number: 1 2/70
28/49 + 72/70 is 8/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 70 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 49 × 10 = 490,
28/49 = 28 × 10/49 × 10 = 280/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
72/70 = 72 × 7/70 × 7 = 504/490 - Add the two like fractions:
280/490 + 504/490 = 280 + 504/490 = 784/490 - 784/490 simplified gives 8/5
- So, 28/49 + 72/70 = 8/5
In mixed form: 13/5
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