Add 72/40 and 3/7
1st number: 1 32/40, 2nd number: 3/7
72/40 + 3/7 is 78/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 7 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
72/40 = 72 × 7/40 × 7 = 504/280 - Likewise, for the 2nd fraction, since 7 × 40 = 280,
3/7 = 3 × 40/7 × 40 = 120/280 - Add the two like fractions:
504/280 + 120/280 = 504 + 120/280 = 624/280 - 624/280 simplified gives 78/35
- So, 72/40 + 3/7 = 78/35
In mixed form: 28/35
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