Add 72/20 and 60/7
1st number: 3 12/20, 2nd number: 8 4/7
72/20 + 60/7 is 426/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 7 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 7 × 20 = 140,
60/7 = 60 × 20/7 × 20 = 1200/140 - Add the two like fractions:
504/140 + 1200/140 = 504 + 1200/140 = 1704/140 - 1704/140 simplified gives 426/35
- So, 72/20 + 60/7 = 426/35
In mixed form: 126/35
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