Add 28/40 and 28/7
1st number: 28/40, 2nd number: 4 0/7
28/40 + 28/7 is 47/10.
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,
28/40 = 28 × 7/40 × 7 = 196/280 - Likewise, for the 2nd fraction, since 7 × 40 = 280,
28/7 = 28 × 40/7 × 40 = 1120/280 - Add the two like fractions:
196/280 + 1120/280 = 196 + 1120/280 = 1316/280 - 1316/280 simplified gives 47/10
- So, 28/40 + 28/7 = 47/10
In mixed form: 47/10
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