Add 12/50 and 72/21
1st number: 12/50, 2nd number: 3 9/21
12/50 + 72/21 is 642/175.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 21 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 50 × 21 = 1050,
12/50 = 12 × 21/50 × 21 = 252/1050 - Likewise, for the 2nd fraction, since 21 × 50 = 1050,
72/21 = 72 × 50/21 × 50 = 3600/1050 - Add the two like fractions:
252/1050 + 3600/1050 = 252 + 3600/1050 = 3852/1050 - 3852/1050 simplified gives 642/175
- So, 12/50 + 72/21 = 642/175
In mixed form: 3117/175
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