Add 72/20 and 98/70
1st number: 3 12/20, 2nd number: 1 28/70
72/20 + 98/70 is 5/1.
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,
98/70 = 98 × 2/70 × 2 = 196/140 - Add the two like fractions:
504/140 + 196/140 = 504 + 196/140 = 700/140 - 700/140 simplified gives 5/1
- So, 72/20 + 98/70 = 5/1
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