Add 70/20 and 28/40
1st number: 3 10/20, 2nd number: 28/40
70/20 + 28/40 is 21/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
70/20 = 70 × 2/20 × 2 = 140/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
28/40 = 28 × 1/40 × 1 = 28/40 - Add the two like fractions:
140/40 + 28/40 = 140 + 28/40 = 168/40 - 168/40 simplified gives 21/5
- So, 70/20 + 28/40 = 21/5
In mixed form: 41/5
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