Add 80/15 and 49/40, Solve 5 5/15 + 1 9/40 as a fraction

Add 80/15 and 49/40

1^st number: 5 5/15, 2^nd number: 1 9/40

80/15 + 49/40 is 787/120.

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,
80/15 = 80 × 8/15 × 8 = 640/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
49/40 = 49 × 3/40 × 3 = 147/120
Add the two like fractions:
640/120 + 147/120 = 640 + 147/120 = 787/120
So, 80/15 + 49/40 = 787/120
In mixed form: 667/120

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