Add 70/20 and 28/16
1st number: 3 10/20, 2nd number: 1 12/16
70/20 + 28/16 is 21/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
70/20 = 70 × 4/20 × 4 = 280/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
28/16 = 28 × 5/16 × 5 = 140/80 - Add the two like fractions:
280/80 + 140/80 = 280 + 140/80 = 420/80 - 420/80 simplified gives 21/4
- So, 70/20 + 28/16 = 21/4
In mixed form: 51/4
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