Add 20/60 and 50/21
1st number: 20/60, 2nd number: 2 8/21
20/60 + 50/21 is 19/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 21 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
20/60 = 20 × 7/60 × 7 = 140/420 - Likewise, for the 2nd fraction, since 21 × 20 = 420,
50/21 = 50 × 20/21 × 20 = 1000/420 - Add the two like fractions:
140/420 + 1000/420 = 140 + 1000/420 = 1140/420 - 1140/420 simplified gives 19/7
- So, 20/60 + 50/21 = 19/7
In mixed form: 25/7
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