Add 72/42 and 56/20
1st number: 1 30/42, 2nd number: 2 16/20
72/42 + 56/20 is 158/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 42 × 10 = 420,
72/42 = 72 × 10/42 × 10 = 720/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
56/20 = 56 × 21/20 × 21 = 1176/420 - Add the two like fractions:
720/420 + 1176/420 = 720 + 1176/420 = 1896/420 - 1896/420 simplified gives 158/35
- So, 72/42 + 56/20 = 158/35
In mixed form: 418/35
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