Add 40/28 and 4/15
1st number: 1 12/28, 2nd number: 4/15
40/28 + 4/15 is 178/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 15 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
40/28 = 40 × 15/28 × 15 = 600/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
4/15 = 4 × 28/15 × 28 = 112/420 - Add the two like fractions:
600/420 + 112/420 = 600 + 112/420 = 712/420 - 712/420 simplified gives 178/105
- So, 40/28 + 4/15 = 178/105
In mixed form: 173/105
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