Add 4/15 and 72/40, Solve 4/15 + 1 32/40 as a fraction

Add 4/15 and 72/40

1^st number: 4/15, 2^nd number: 1 32/40

4/15 + 72/40 is 31/15.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 40 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 15 × 8 = 120,
4/15 = 4 × 8/15 × 8 = 32/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
72/40 = 72 × 3/40 × 3 = 216/120
Add the two like fractions:
32/120 + 216/120 = 32 + 216/120 = 248/120
248/120 simplified gives 31/15
So, 4/15 + 72/40 = 31/15
In mixed form: 21/15

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