Add 42/21 and 1/72, Solve 2 0/21 + 1/72 as a fraction

Add 42/21 and 1/72

1^st number: 2 0/21, 2^nd number: 1/72

42/21 + 1/72 is 145/72.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 72 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 21 × 24 = 504,
42/21 = 42 × 24/21 × 24 = 1008/504
Likewise, for the 2nd fraction, since 72 × 7 = 504,
1/72 = 1 × 7/72 × 7 = 7/504
Add the two like fractions:
1008/504 + 7/504 = 1008 + 7/504 = 1015/504
1015/504 simplified gives 145/72
So, 42/21 + 1/72 = 145/72
In mixed form: 21/72

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