Add 42/45 and 72/10
1st number: 42/45, 2nd number: 7 2/10
42/45 + 72/10 is 122/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
42/45 = 42 × 2/45 × 2 = 84/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
72/10 = 72 × 9/10 × 9 = 648/90 - Add the two like fractions:
84/90 + 648/90 = 84 + 648/90 = 732/90 - 732/90 simplified gives 122/15
- So, 42/45 + 72/10 = 122/15
In mixed form: 82/15
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