Add 21/50 and 98/70, Solve 21/50 + 1 28/70 as a fraction

Add 21/50 and 98/70

1^st number: 21/50, 2^nd number: 1 28/70

21/50 + 98/70 is 91/50.

Find the least common denominator or LCM of the two denominators:
LCM of 50 and 70 is 350

Next, find the equivalent fraction of both fractional numbers with denominator 350
For the 1st fraction, since 50 × 7 = 350,
21/50 = 21 × 7/50 × 7 = 147/350
Likewise, for the 2nd fraction, since 70 × 5 = 350,
98/70 = 98 × 5/70 × 5 = 490/350
Add the two like fractions:
147/350 + 490/350 = 147 + 490/350 = 637/350
637/350 simplified gives 91/50
So, 21/50 + 98/70 = 91/50
In mixed form: 141/50

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