Add 72/20 and 49/84
1st number: 3 12/20, 2nd number: 49/84
72/20 + 49/84 is 251/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
72/20 = 72 × 21/20 × 21 = 1512/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
49/84 = 49 × 5/84 × 5 = 245/420 - Add the two like fractions:
1512/420 + 245/420 = 1512 + 245/420 = 1757/420 - 1757/420 simplified gives 251/60
- So, 72/20 + 49/84 = 251/60
In mixed form: 411/60
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