Add 56/20 and 70/42
1st number: 2 16/20, 2nd number: 1 28/42
56/20 + 70/42 is 67/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 42 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
56/20 = 56 × 21/20 × 21 = 1176/420 - Likewise, for the 2nd fraction, since 42 × 10 = 420,
70/42 = 70 × 10/42 × 10 = 700/420 - Add the two like fractions:
1176/420 + 700/420 = 1176 + 700/420 = 1876/420 - 1876/420 simplified gives 67/15
- So, 56/20 + 70/42 = 67/15
In mixed form: 47/15
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