Add 30/28 and 72/40
1st number: 1 2/28, 2nd number: 1 32/40
30/28 + 72/40 is 201/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 28 × 10 = 280,
30/28 = 30 × 10/28 × 10 = 300/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
72/40 = 72 × 7/40 × 7 = 504/280 - Add the two like fractions:
300/280 + 504/280 = 300 + 504/280 = 804/280 - 804/280 simplified gives 201/70
- So, 30/28 + 72/40 = 201/70
In mixed form: 261/70
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