Add 28/40 and 72/45, Solve 28/40 + 1 27/45 as a fraction

Add 28/40 and 72/45

1^st number: 28/40, 2^nd number: 1 27/45

28/40 + 72/45 is 23/10.

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 45 is 360

Next, find the equivalent fraction of both fractional numbers with denominator 360
For the 1st fraction, since 40 × 9 = 360,
28/40 = 28 × 9/40 × 9 = 252/360
Likewise, for the 2nd fraction, since 45 × 8 = 360,
72/45 = 72 × 8/45 × 8 = 576/360
Add the two like fractions:
252/360 + 576/360 = 252 + 576/360 = 828/360
828/360 simplified gives 23/10
So, 28/40 + 72/45 = 23/10
In mixed form: 23/10

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