Add 3/7 and 42/40, Solve 3/7 + 1 2/40 as a fraction

Add 3/7 and 42/40

1^st number: 3/7, 2^nd number: 1 2/40

3/7 + 42/40 is 207/140.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 40 is 280

Next, find the equivalent fraction of both fractional numbers with denominator 280
For the 1st fraction, since 7 × 40 = 280,
3/7 = 3 × 40/7 × 40 = 120/280
Likewise, for the 2nd fraction, since 40 × 7 = 280,
42/40 = 42 × 7/40 × 7 = 294/280
Add the two like fractions:
120/280 + 294/280 = 120 + 294/280 = 414/280
414/280 simplified gives 207/140
So, 3/7 + 42/40 = 207/140
In mixed form: 167/140

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