Add 72/20 and 49/70
1st number: 3 12/20, 2nd number: 49/70
72/20 + 49/70 is 43/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
72/20 = 72 × 7/20 × 7 = 504/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
49/70 = 49 × 2/70 × 2 = 98/140 - Add the two like fractions:
504/140 + 98/140 = 504 + 98/140 = 602/140 - 602/140 simplified gives 43/10
- So, 72/20 + 49/70 = 43/10
In mixed form: 43/10
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