Add 21/7 and 20/60
1st number: 3 0/7, 2nd number: 20/60
21/7 + 20/60 is 10/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 7 × 60 = 420,
21/7 = 21 × 60/7 × 60 = 1260/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
20/60 = 20 × 7/60 × 7 = 140/420 - Add the two like fractions:
1260/420 + 140/420 = 1260 + 140/420 = 1400/420 - 1400/420 simplified gives 10/3
- So, 21/7 + 20/60 = 10/3
In mixed form: 31/3
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