Add 40/35 and 21/72, Solve 1 5/35 + 21/72 as a fraction

Add 40/35 and 21/72

1^st number: 1 5/35, 2^nd number: 21/72

40/35 + 21/72 is 241/168.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 72 is 2520

Next, find the equivalent fraction of both fractional numbers with denominator 2520
For the 1st fraction, since 35 × 72 = 2520,
40/35 = 40 × 72/35 × 72 = 2880/2520
Likewise, for the 2nd fraction, since 72 × 35 = 2520,
21/72 = 21 × 35/72 × 35 = 735/2520
Add the two like fractions:
2880/2520 + 735/2520 = 2880 + 735/2520 = 3615/2520
3615/2520 simplified gives 241/168
So, 40/35 + 21/72 = 241/168
In mixed form: 173/168

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