Add 42/5 and 72/7
1st number: 8 2/5, 2nd number: 10 2/7
42/5 + 72/7 is 654/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 7 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 5 × 7 = 35,
42/5 = 42 × 7/5 × 7 = 294/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
72/7 = 72 × 5/7 × 5 = 360/35 - Add the two like fractions:
294/35 + 360/35 = 294 + 360/35 = 654/35 - So, 42/5 + 72/7 = 654/35
In mixed form: 1824/35
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